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Journal articles on the topic 'Cellulose – Effets du feu'

Author: Grafiati

Published: 7 July 2024

Last updated: 31 July 2025

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1

Laris, Paul, and Aziz Bakkoury. "Nouvelles leçons d'une vieille pratique : mosaïque du feu dans la savane du Mali." BOIS & FORETS DES TROPIQUES 296 (June 1, 2008): 5–16. https://doi.org/10.19182/bft2008.296.a20385.

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La savane africaine occidentale est un des paysages tropicaux les plus largement parcourus par les feux de brousse. Lors de la période coloniale, relayée par les gouvernements postcoloniaux, des politiques en vue de contrôler ces feux ont été mises en place. Elles n'ont pas réussi et ont, en outre, créé un très long conflit entre les services forestiers et les populations rurales. L'option de lutte contre les feux, qui a persisté pendant presque un siècle, semble s'affaiblir. Le gouvernement a récemment adopté une nouvelle politique. Ce changement permet aux communautés locales de coordonner d

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2

Chlodulfe, Tchibozo Sélidji Vital, Dossa Luc Hippolyte, Houndonougbo Fédéric, Koura Bossima Ivan, and Houinato Benjamin Marcel. "Effets De L’incorporation Du Son De Maïs A Différents Doses Sur Les Performances De Croissance Des Lapereaux Et La Rentabilité De L’élevage." European Scientific Journal, ESJ 13, no. 24 (2017): 473. http://dx.doi.org/10.19044/esj.2017.v13n24p473.

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This study was conducted to evaluate the performance of rabbits fed with rations containing corn bran at different levels of incorporation. Three rations, R5, R11 and R16, were formulated with incorporation rates of corn bran of 5.5%, 11% and 16.5%, respectively. Ninety young rabbits of 5 weeks of age were used for the experiments. The fattening study lasted 8 weeks and that of digestibility lasted for 1 week. The findings showed that the ration with 5.5% maize bran showed the best growth performances (18 g/d) with the highest digestibility values of dry matter (67%) and cellulose (97%). The r

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3

Rakotoarimanana, Vonjison, and Michel Grouzis. "Effets à court terme du feu et du pâturage sur la qualité fourragère d’une savane àHeteropogon contortus du sud-ouest de Madagascar." Revue d’élevage et de médecine vétérinaire des pays tropicaux 61, no. 2 (2008): 81. http://dx.doi.org/10.19182/remvt.10003.

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Une étude expérimentale sur le rôle du feu et du pâturage a été conduite dans la région de Sakaraha (sud-ouest de Madagascar). L’objectif a été d’évaluer les effets conjugués ou séparés du feu appliqué selon différentes modalités (sans feu, feu précoce, feu tardif) et du pâturage (non pâturé, pâturé) sur l’évolution de la qualité fourragère d’une savane à Heteropogon contortus et Poupartia caffra. L’appréciation de cette qualité fourragère a été réalisée en étudiant la valeur pastorale et la valeur fourragère. Une étude diachronique a permis de montrer (a) une augmentation de la valeur pastora

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4

Malthête, Jacques. "Un feu d'artifice improvisé ? Les effets pyrotechniques chez Méliès." 1895. Mille huit cent quatre-vingt-quinze, no. 39 (February 1, 2003): 61–72. http://dx.doi.org/10.4000/1895.3082.

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5

Yang, Wei, Min Zhou, Lishi Yan, Xin Ju, and Liangzhi Li. "Diversity of Paenibacillus sp. LLZ1 cellulase and its improved enzyme activity and stability in the ionic liquid 1-ethyl-3-methylimidazolium diethyl phosphate." BioResources 14, no. 2 (2019): 3132–45. http://dx.doi.org/10.15376/biores.14.2.3132-3145.

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The stability of cellulase in the presence of ionic liquids (ILs) is pivotal for the in situ saccharification of cellulose. This study investigated the effects of various carbon sources on the cellulase production of Paenibacillus sp. LLZ1. The results showed that the activities of both the total cellulase and endoglucanase induced by microcrystalline cellulose were higher than those induced by other examined carbon sources. Simultaneously, a zymography analysis revealed the presence of seven protein bands (carboxymethylcelluloses 3, 4 and 6 through 10) with endoglucanase activity when MCC was

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6

Mawussi, Ayité Claude, Florence Tagodoe, and Koffi Kpotchou. "Les travailleuses du sexe à Lomé face à la Covid-19." Cahiers du Genre 75, no. 2 (2024): 227–55. http://dx.doi.org/10.3917/cdge.075.0227.

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La pandémie de la Covid-19 et la mesure du couvre-feu ont beaucoup fragilisé les travailleuses du sexe à Lomé. Le présent article questionne les effets de la crise sanitaire sur leur activité. Il montre que le couvre-feu a dégradé leur travail et les a rendues économiquement plus vulnérables. Dans ce contexte, la plupart d’entre elles, même si elles en connaissent les conséquences, continuent d’avoir des comportements à risque, alors que d’autres nient l’existence de la maladie. Pour certaines, l’activité de prostitution a migré sur les réseaux sociaux, alors que d’autres ont enclenché un proc

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7

Santoni, P. A., J. H. Balbi, and J. L. Dupuy. "Dynamic modelling of upslope fire growth." International Journal of Wildland Fire 9, no. 4 (1999): 285. http://dx.doi.org/10.1071/wf00004.

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A two-dimensional non-stationary model of fire spread including slope effects is proposed. The numerical study of this model allows us to predict the rate of spread, the fire front perimeter and the temperature distribution for a fire spreading across a fuel bed under slope conditions. The numerical results are compared with success to experimental data generated from two laboratory point-ignition fire experiments which were conducted on dehydrated Pinus pinaster litter with slopes of 20 and 30°. Résumé Nous proposons un modèle bidimensionnel évolutif de propagation de feu prenant en compte le

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8

Yedmel, Memel S. Ch, Adjumane A. Kadio, Olivier J. Hardy, N’Guessan François Kouame, and Nicolas S. Barbier. "Impact du feu sur la structure et la composition floristique d’un peuplement forestier de Côte d’Ivoire et interaction avec les traitements sylvicoles." Canadian Journal of Forest Research 40, no. 10 (2010): 1904–13. http://dx.doi.org/10.1139/x10-117.

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La dynamique structurale et floristique des forêts tropicales humides en réponse aux perturbations reste très méconnue, en dépit des problématiques actuelles de stockage de carbone et de conservation de la biodiversité. Le dispositif de la Téné (Côte d’Ivoire) est un peuplement forestier suivi depuis 1978, afin d’étudier à long terme la dynamique des espèces à potentiel commercial. En 1983, il a été accidentellement parcouru par le feu, et plus de 65 % de la surface totale a été atteinte. L’objectif de cette étude est d’évaluer l’impact des modalités sylvicoles combinées au passage du feu sur

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9

Huang, Hai, Yuantao Hu, Hui Zhang, Shilin Cao, and Xiaojuan Ma. "Limitations on the protective action of MgSO4 for cellulose during kraft pulp oxygen delignification." BioResources 16, no. 1 (2021): 1438–52. http://dx.doi.org/10.15376/biores.16.1.1438-1452.

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Magnesium sulfate (MgSO4) is the most widely used protector for alleviating the effects that metal ions have on cellulose degradation. However, the efficiency of MgSO4 is limited by the oxygen delignification conditions. This work discusses the factors influencing MgSO4 efficiency in terms of cellulose protection and delignification. The type and concentration of metal ions, delignification rate, additions order, and mixing degree of MgSO4 should affect the cellulose degradation during oxygen delignification in the presence of MgSO4. The most adverse effects on cellulose are observed with Mn2+

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10

Ashton, Peter S. "La régénération dans les forêts de plaine de l'intérieur du Sud Viêt-Nam dix ans après pulvérisation aérienne de l'agent orange comme défoliant." BOIS & FORETS DES TROPIQUES 211 (March 1, 1986): 3–34. https://doi.org/10.19182/bft1986.211.a19574.

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En janvier 1983, l'auteur a visité des forêts denses de plaine au Sud Viêt-Nam pour lesquelles des photos aériennes et des données sur la pulvérisation chimique étaient disponibles, et dans le but d'évaluer les effets résiduels dix ans après l'arrêt de la pulvérisation. Les effets directs des défeuillants chimiques sur les forêts ont été immédiats et les produits chimiques responsables de la défoliation ne persistent pas dans l'écosystème. Le dommage résultant varie beaucoup en intensité. En général seul le couvert a été détruit et la régénération existante a survécu pour former un nouveau peu

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11

Cemin, Henrique S., Mike D. Tokach, Steve S. Dritz, et al. "PSV-9 Effects of insoluble fiber source (cellulose or distillers dried grains with solubles) on growth performance of nursery pigs." Journal of Animal Science 97, Supplement_2 (2019): 193–94. http://dx.doi.org/10.1093/jas/skz122.341.

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Abstract A total of 3,171 pigs (PIC 327×L42; initially 5.8 kg) were used in a 39-d study. Treatments were arranged in a 2 × 2 factorial with 0 or 1% cellulose (Arbocel, J. Rettenmaier USA, Schoolcraft, MI) and distillers dried grains with solubles (DDGS; 0 or 5% in phase 1 and 0 or 15% in phase 2). Dietary phases 1 and 2 were offered from d 0 to 10 and 10 to 25, respectively. From d 25 to 39, pigs received a common diet with 25% DDGS. Pens were blocked by weight and allotted to treatments in a randomized complete block design. Experimental unit was two pens (66 pigs) sharing a fence-line feede

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12

Souza, Dênia Oliveira de, Cirano José Ulhoa, Weslane Justina da Silva, et al. "Evaluation of the Addition of Humicola Grisea Cellulase to Broiler Chicken Rations for a 21-Day Period." Poultry 2, no. 4 (2023): 463–74. http://dx.doi.org/10.3390/poultry2040035.

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This study aimed to evaluate the addition of liquid cellulose, produced by Humicola grisea, in 21-day-old broiler chickens’ diets. The treatments comprised control rations of corn and soybean meal and rations to which 500 mL/t and 1000 mL/t of cellulase were added. A total of 180 male broiler chickens were used, distributed in a completely randomized design, with three treatments and six replicates. Broiler chicken performance was monitored during the period from 1 to 21 days old. Significant effects were detected for digestibility only between four and seven days old, when a reduced dry matte

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13

Cott, Peter A., Barry A. Zajdlik, Kelly J. Bourassa, Marc Lange, and Andrew M. Gordon. "Effects of Forest Fire on Young-of-the-year Northern Pike, Esox lucius, in the Northwest Territories." Canadian Field-Naturalist 124, no. 2 (2010): 104. http://dx.doi.org/10.22621/cfn.v124i2.1046.

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In 1998, a forest fire burned 58% of the forested shoreline surrounding Tibbitt Lake, Northwest Territories, including riparian vegetation used by Northern Pike (Esox lucius) as spawning habitat. This presented an opportunity to investigate the effects that habitat disturbance from a natural forest fire had on young-of-the-year (Y-O-Y) Northern Pike. Pike fry were collected from three burned and three unburned sites around Tibbitt Lake in 1999 (the first post-fire spawning season) and again in 2001. Differences in size and relative abundance were evaluated between sites. Y-O-Y Northern Pike we

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14

Bertault, Jean-Guy. "Quand la forêt tropicale s'enflamme. Près de trois millions d'hectares détruits à Kalimantan." BOIS & FORETS DES TROPIQUES 230 (December 1, 1991): 5–14. https://doi.org/10.19182/bft1991.230.a19686.

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Après avoir rappelé les relations souvent anciennes entre le feu et la forêt tropicale, l'auteur souligne que ces incendies ne peuvent se développer que dans des circonstances très particulières comme l'apparition de sécheresses marquées, elles-mêmes corrélées à d'autres phénomènes comme celui d’« El Nino », courant de l'océan Pacifique dont les oscillations se manifestent les années de forte sécheresse. Les effets de la sécheresse en 1982 et 1983 sont ensuite décrits dans cette province de l'Est-Kalimantan avec les différents types de progression de ces feux qui ont parcouru durant cette péri

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15

May, Thomas. "EFFETS CONTRASTÉS DES PRÉLÈVEMENTS DE BOIS SUR LA VÉGÉTATION DE FORÊT SÈCHE EN ZONE FRONTALIÈRE DOMINICO-HAÏTIENNE : COMMENT LES INTERPRÉTER ?" BOIS & FORETS DES TROPIQUES 326, no. 326 (2015): 3. http://dx.doi.org/10.19182/bft2015.326.a31279.

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En Haïti, le bois de feu et le charbon végétal sont des sources importantes d’énergie domestique, et le prélèvement de bois à des fins énergétiques repré- sente un facteur de dégradation de la forêt sèche, en plus du parcours d’ani- maux domestiques (chèvres et vaches). En République dominicaine limitrophe, tandis qu’il y a trois décennies la situa- tion était similaire, les conditions ont aujourd’hui changé et les forêts sèches montrent des signes de régénération. Dans l’extrême sud de la ligne de fron- tière entre les deux pays, près d’Anse- à-Pitre et Pedernales, l’opportunité se présente d

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16

Ni, Wei, Yujia Tao, Ying Zhai, Jiangyuan Chen, and Fahu Yuan. "Effects of Artemisia Selengensis Dietary Fiber on the Regulation of Blood Glucose and Lipids and Intestinal Flora in Diabetic Mice." International Journal of Public Health and Medical Research 2, no. 3 (2024): 31–35. https://doi.org/10.62051/ijphmr.v2n3.06.

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The aim of this study was to investigate the regulation effect of soluble dietary fiber from Artemisia selengensis on blood glucose and lipid in diabetic mice, and its effect on intestinal flora. SPF grade C57BL/6 mice were selected, blank group was fed basic diet, and other mice were fed high-sugar and high-fat diet for 8 weeks, and then intraperitoneally injected streptozotocin (STZ) solution to establish a diabetic mouse model. After successful modeling, the mice were randomly divided into model control group and Artemisia selengensis fiber group. The blank group was fed the basic diet, the

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17

Overton, P. D., N. Furlonger, J. M. Beety, J. Chakraborty, J. A. Tredger, and L. M. Morgan. "The effects of dietary sugar-beet fibre and guar gum on lipid metabolism in Wistar rats." British Journal of Nutrition 72, no. 3 (1994): 385–95. http://dx.doi.org/10.1079/bjn19940041.

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This study investigates the mechanisms of action for the hypocholesterolaemic effects of sugar-beet fibre (SBF) and gum gum. Four groups of ten male Wistar rats were fed ad lib. on test diets containing either 100 g SBF or guar/kg, or control diets containing 100 g cellulose or wheat bran/kg for 28 d. Food intake, weight gain and food consumption ratios were unaffected by the diets. Circulating cholesterol and hepatic cholesterol concentrations were significantly lower in both SBF- and guar-fed groups compared with either cellulose- or bran-fed animals. Circulating triacylglycerol concentratio

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18

Chance, Jenna A., Mike D. Tokach, Hilda I. Calderon, Jason C. Woodworth, Joel M. DeRouchey, and Robert D. Goodband. "245 Evaluation of Cellulose in Diets with and Without Added Zno on Nursery Pig Performance." Journal of Animal Science 99, Supplement_1 (2021): 92–93. http://dx.doi.org/10.1093/jas/skab054.148.

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Abstract A total of 1,296 pigs (PIC L337×1050; initially 4.8 kg) were used in a 42-d study to evaluate cellulose in diets with and without pharmacological levels of Zn on nursery pig performance. Our hypothesis was that added fiber (cellulose) may provide more benefit in diets without ZnO. Pens were assigned to 1 of 4 dietary treatments in a RCBD by BW with 27 pigs/pen and 12 pens/treatment. Dietary treatments were arranged in a 2×2 factorial with main effects of cellulose (0 vs 1%; J. Rettenmaier USA, Schoolcraft, MI) and Zn (200 vs. 3,000 mg/kg in phase 1 and 110 vs. 2,000 mg/kg in phase 2).

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19

Track, Norman S., Margaret E. Cawkwell, Beth C. Chin, Susan S. Chiu, Sean A. Haberer, and Christopher R. Honey. "Guar gum consumption in adolescent and adult rats: short- and long-term metabolic effects." Canadian Journal of Physiology and Pharmacology 63, no. 9 (1985): 1113–21. http://dx.doi.org/10.1139/y85-183.

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Metabolic responses to short- and long-term guar gum consumption were studied in adolescent and adult rats. For the Song-term study, male adolescent rats were divided into four groups (n = 60/group) and fed guar gum, cellulose, or bran diet for 67 weeks. Metabolic studies (food–water intake, feces–urine output, body weight, carbohydrate tolerance) were performed eight times during the 67 weeks. The guar gum group consumed less diet throughout the entire study and gained less weight over the first 20 weeks compared with the cellulose and bran groups. A second bran-fed group was food restricted

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20

Sanou, Lassina. "Perceptions locales des perturbations écologiques sur la dynamique de la végétation de la réserve de biosphère transfrontalière Parc National du W, Afrique de l’Ouest." Revue Ecosystèmes et Paysages 3, no. 2 (2023): 1–17. http://dx.doi.org/10.59384/recopays.tg3204.

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L’activité humaine est au centre des perturbations écologiques et participe au processus lent de reconstitution des écosystèmes. Ce travail a été réalisé dans le Parc National du W et trois villages environnants avec pour objectif global de disposer de connaissances de base pouvant contribuer à une meilleure gestion des habitats des aires proté-gées. Des enquêtes menées auprès de 240 personnes visaient à recueillir leur perception des facteurs de perturbation écologiques (feu, pâture). Il ressort que les populations locales ont une bonne connaissance des effets de la pâture et des feux de brou

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21

Dong, Y., H. D. Bae, T. A. McAllister, G. W. Mathison та K. J. Cheng. "Effects of exogenous fibrolytic enzymes, α-bromoethanesulfonate and monensin on fermentation in a rumen simulation (RUSITEC) system". Canadian Journal of Animal Science 79, № 4 (1999): 491–98. http://dx.doi.org/10.4141/a99-024.

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The effects of exogenous fibrolytic enzymes, α-bromoethanesulfonate (BES) and monensin on fermentation and digestibility of grass hay were examined using two rumen simulation technique (RUSITEC) devices, each equipped with eight 820-mL fermenters with a liquid dilution rate of 0.73 d−1. Grass hay (10 g d−1) was fed either untreated or pre-treated with 0.2 g each of cellulase and xylanase, and in combination with no chemical or daily dosing of 20.5 µmol monensin, 20.5 µmol BES or 41 µmol BES. Pretreatment of hay with the fibrolytic enzymes increased (P < 0.05) organic matter (OM), cellulose

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22

Bégin, Yves, Samuel Arseneault, and Jean Lavoie. "Dynamique d’une bordure forestière par suite de la hausse récente du niveau marin, rive sud-ouest du golfe du Saint-Laurent, Nouveau-Brunswick." Géographie physique et Quaternaire 43, no. 3 (2007): 355–66. http://dx.doi.org/10.7202/032788ar.

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RÉSUMÉ La transgression marine sur la côte sud du golfe du Saint-Laurent a notamment pour effet de provoquer la dégradation des marges forestières. Le déplacement de la ligne de rivage s'effectue à une vitesse moyenne de 1,11 m/an, correspondant ainsi à un taux de transgression marine de 10 à 50 cm/siècle. L'étude d'un site représentatif à la pointe Escuminac, au Nouveau-Brunswick, a permis de mettre en évidence les changements survenus au sein dune bande forestière au cours des dernières décennies. Par l'analyse dendrochronologique et l'étude de la structure des populations, nous avons retrac

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23

Kim, Yeji, Sung Wook Hwang, Seungil Kim, et al. "Dietary cellulose prevents gut inflammation by modulating lipid metabolism and gut microbiota." Journal of Immunology 204, no. 1_Supplement (2020): 83.28. http://dx.doi.org/10.4049/jimmunol.204.supp.83.28.

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Abstract A Western diet comprising high fat, high carbohydrate, and low fiber content has been suggested to contribute to an increased prevalence of colitis. To clarify the effect of dietary cellulose (an insoluble fiber) on gut homeostasis, for 3 months mice were fed a high-cellulose diet (HCD) or a low-cellulose diet (LCD) based on the AIN-93G formulation. Histologic evaluation showed crypt atrophy and goblet cell depletion in the colons of LCD-fed mice. RNA-sequencing analysis showed a higher expression of genes associated with immune system processes, especially those of chemokines and the

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24

Humeau, Mikael, Nathalie Papet, Louise Gotzamanis, Nenat Jaafari, and Jean-Louis Senon. "Effets des réglementations en matière d'utilisation et de détention des armes à feu sur le taux de suicide." Médecine & Droit 2006, no. 79-80 (2006): 134–41. http://dx.doi.org/10.1016/j.meddro.2006.07.004.

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25

ROTTER, R. G., A. A. FROHLICH, and R. R. MARQUARDT. "INFLUENCE OF DIETARY MANIPULATION ON THE DETRIMENTAL EFFECTS OF MOLD-CONTAMINATED BARLEY FED TO GROWING CHICKS." Canadian Journal of Animal Science 69, no. 4 (1989): 1059–66. http://dx.doi.org/10.4141/cjas89-120.

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The effects of feeding Penicillium cyclopium and Aspergillus flavus contaminated barley on Leghorn chicks were examined. Mycotoxin screening determined the mold-contaminated barley to be free of suspect toxins. This study examined the hypothesis that the effects of mold-contaminated barley are due to a deficiency of readily digestible nutrients, or some other factor. Chicks were fed diets containing either mold-free barley, a non-nutritive bulk (cellulose) plus mold-free barley, or a mold-contaminated barley (7% mold), in combination with low (2%) or high (10%) dietary tallow and supplemental

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Fontanille, Jacques. "Lumières, matières et paysages." Protée 31, no. 3 (2004): 17–30. http://dx.doi.org/10.7202/008434ar.

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Résumé Parmi tous les effets de lumière, on a choisi de prêter attention à l’un d’eux, car il a trait aux rapports entre le temps et la matière : il s’agit de la « lumière intérieure » dans le paysage. La lumière interne devient alors une propriété des objets et de leur structure matérielle, en plusieurs directions : l’animation actantielle, puisque l’intensité de l’éclat émane de l’objet ; la modalité et l’aspectualité, puisque la matière module la « restitution » de cet éclat ; la temporalité, enfin, puisque la perception de ces lumières est alors dissociée de celle de la source et du moment

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27

Baek, Jin-Hong, Tae-Yang Cha, Jin-Chul Heo, Sang-Han Lee, and Shin-Young Lee. "In Vitro and In Vivo Physiological Characteristics of Dietary Fiber from By-product of Aloe vera Gel Processing." Food Engineering Progress 14, no. 2 (2010): 173–82. http://dx.doi.org/10.13050/foodengprog.2010.14.2.173.

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A fiber fraction (Aloe cellulose), the by-product obtained from Aloe vera gel processing was freeze dried and investigated for in vitro glucose/ bile acid retarding effects of powdered sample (100 mesh) comparing with commercial α-cellulose as a reference sample. We also examined the effectiveness of physiological functionality such as the antiobesity and anti-constipation on Sprague-Dawley (SD) rat. The Aloe cellulose powders during in vitro dialysis experiment for 2 hours exhibited the glucose and bile acid retarding index of 20.32-35.2% and 53.13-28.30%, respectively. Especially, freeze dri

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Hammers, Kelsey, Hilda I. Calderon, Mike D. Tokach, et al. "244 Effect of Fiber Source and Crude Protein Level on Nursery Pig Performance." Journal of Animal Science 99, Supplement_1 (2021): 94–95. http://dx.doi.org/10.1093/jas/skab054.152.

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Abstract A total of 360 pigs (DNA 200′400, initially 5.0 kg) were used in a 45-d growth trial to determine the effects of fiber source and crude protein (CP) level in diets without pharmacological levels of ZnO on nursery pig growth performance and fecal dry matter (DM). Pigs were randomly assigned to 1 of 8 treatments with 5 pigs/pen and 9 pens/treatment. Treatments were arranged in a 2×4 factorial with main effects of CP (21 or 18%) and fiber source [none, coarse wheat bran (CWB), oat hulls, or cellulose (Arbocel, J. Rettenmaier USA, Schoolcraft, MI)]. Fiber source was added to equalize the

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Li, Shijun, Liuqing Yang, and Shengtao Li. "Effects of Long-Term Vibration on Cellulose Degradation in an Oil-Impregnated Pressboard under Simultaneous Thermal–Electrical–Mechanical Stress Aging." Energies 15, no. 7 (2022): 2547. http://dx.doi.org/10.3390/en15072547.

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Due to the complex operation conditions in a power transformer, an oil-impregnated pressboard (OIP) simultaneously suffers from thermal, electrical, and mechanical stress. Since most research studies have paid much attention to thermal or electrical aging of OIPs, this paper analyzes the effects of long-term mechanical vibrations on cellulose degradation in OIPs under simultaneous multi-stress. The aging experiments were firstly conducted at 130 °C, with a DC electric voltage of +6 kV, vibration amplitude of 10–50 μm, and vibration frequency of 100–300 Hz. The finite element analysis (FEA) of

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Finet, Shannon E., Fei He, Lindsay V. Clark, and Maria R. de Godoy. "112 Modulating Effects of Miscanthus Grass and Prebiotic Blends on Canine Fecal Microbiota, Metabolites, and Digestibility." Journal of Animal Science 99, Supplement_3 (2021): 56–57. http://dx.doi.org/10.1093/jas/skab235.101.

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Abstract Dietary fiber plays an important role in gastrointestinal health as it modulates the gut environment and promotes microbiome homeostasis. However, dietary fiber sources vary in composition, physico-chemical properties, and physiological effects. The objective of this study was to evaluate the effects of miscanthus grass fiber and prebiotic fiber blends on fecal microbiota, fecal metabolites, and apparent total tract digestibility in comparison to traditional dietary fiber sources. Animal procedures were approved by the University of Illinois Institutional Animal Care and Use Committee

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Horbelt, Nils, John W. C. Dunlop, Luca Bertinetti, Peter Fratzl, and Michaela Eder. "Effects of moisture and cellulose fibril angle on the tensile properties of native single Norway spruce wood fibres." Wood Science and Technology 55, no. 5 (2021): 1305–18. http://dx.doi.org/10.1007/s00226-021-01315-4.

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AbstractIsolated single wood fibres with cellulose fibril angles from 10 to 43° were tested in microtensile tests under controlled temperature and relative humidity of 5, 50, 75, 90% and in the wet state. This systematic study provides experimental stiffness and strength data, calculated on cell wall cross sections. It has been shown that stiffness reduction with increasing moisture content is more pronounced in fibres with large cellulose fibril angles. Interestingly, stiffness reduction in fibres with low cellulose fibril angles has been observed for the fully hydrated state only. The experi

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El-Wahab, Amr Abd, Jan Berend Lingens, Julia Hankel, Christian Visscher, and Cristina Ullrich. "Effect of Different Fiber Sources as Additives to Wet Food for Beagle Dogs on Diet Acceptance, Digestibility, and Fecal Quality." Veterinary Sciences 10, no. 2 (2023): 91. http://dx.doi.org/10.3390/vetsci10020091.

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In order to enhance the health and welfare of obese dogs and to facilitate the required loss of body weight, commercial diets are produced with fibrous ingredients. Cellulose is a common dietary fiber used mainly in powdered form. However, other processing forms and fibers are available as fibrous additives. This work aimed to test the effects of different fiber sources on apparent total tract digestibility and fecal quality in dogs. Four diets were fed to eight dogs (experimental design: 4 × 4 Latin square) for a 14-day period each. In addition to a basal diet (CO), three experimental diets v

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Singh, Vishal, Beng San Yeoh, and Matam Vijay-Kumar. "Fermentable Fiber Pectin Improves Intestinal Inflammation by Modulating Gut Microbial Metabolites and Inflammasome Activity." Current Developments in Nutrition 4, Supplement_2 (2020): 1535. http://dx.doi.org/10.1093/cdn/nzaa068_020.

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Abstract Objectives Appreciation of the therapeutic benefits of fermentable dietary fibers (FDFs) in inflammatory bowel disease (IBD) is continuously growing. Herein, we examined the effect, and underlying mechanism(s), of FDF pectin on IBD development by using a preclinical model of intestinal inflammation. Methods Chronic colitis was induced in dietary cellulose or pectin-fed WT mice by administering four weekly injections of interleukin (IL)-10 receptor neutralizing antibody. Mice were euthanized two weeks after the last injection, and colitis development was examined by gross colon appeara

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Shafey, TM. "Effects of chelating agents on the performance of growing chickens fed high calcium diets." Australian Journal of Experimental Agriculture 31, no. 6 (1991): 765. http://dx.doi.org/10.1071/ea9910765.

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The effects of supplementation with chelating agents on the growth performance of chickens fed high calcium diets were investigated in 2 experiments. In experiment 1, increasing dietary calcium to 25.2 g/kg significantly reduced body weight gain and feed efficiency. The addition of phytic acid (10 g/kg) tended to improve body weight gain of chickens fed high calcium diets; however, the gain was not significantly different from that of birds fed the high calcium diet. The addition of either Na2EDTA (1 g/kg) or proline (10 g/kg) to a high calcium diet did not affect body weight gain or feed effi

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Mälkki, Y., R. Törrönen, K. Pelkonen, O. Myllymäki, O. Hänninen, and K. Syrjänen. "Effects of oat-bran concentrate on rat serum lipids and liver fat infiltration." British Journal of Nutrition 70, no. 3 (1993): 767–76. http://dx.doi.org/10.1079/bjn19930172.

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Oat bran concentrated with respect to both soluble and insoluble dietary fibre was fed to adult rats, and its effects on serum cholesterol and liver fat infiltration were studied. The feeds contained 15, 30 or 45 g β-glucan/kg, except in control groups where the fibre of the feed was cellulose. Half the experimental groups received the feeds with an addition of 10 g cholesterol and 2 g cholic acid/kg in order to create an hypercholesterolaemic condition. In normocholesterolaemic rats the concentrated oat bran did not cause any significant changes in serum cholesterol concentrations, but reduce

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Hayashi, Kumiko, Hiroshi Hara, Patchana Asvarujanon, Yoritaka Aoyama, and Pairojana Luangpituksa. "Ingestion of insoluble dietary fibre increased zinc and iron absorption and restored growth rate and zinc absorption suppressed by dietary phytate in rats." British Journal of Nutrition 86, no. 4 (2001): 443–51. http://dx.doi.org/10.1079/bjn2001417.

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We examined the effects of ingestion of five types of insoluble fibre on growth and Zn absorption in rats fed a marginally Zn-deficient diet (6·75 mg (0·103 mmol) Zn/kg diet) with or without added sodium phytate (12·6 mmol/kg diet). The types of insoluble fibre tested were corn husks, watermelon skin, yam-bean root (Pachyrhizus erosus) and pineapple core, and cellulose was used as a control (100 g/kg diet). Body-weight gain in the cellulose groups was suppressed by 57 % by feeding phytate. Body-weight gain in phytate-fed rats was 80 % greater in the watermelon skin fibre and yam-bean root fibr

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Wattanakul, Wattana, Karun Thongprajukaew, Waraporn Hahor, and Naraid Suanyuk. "Optimal Replacement of Soybean Meal with Fermented Palm Kernel Meal as Protein Source in a Fish Meal-Soybean Meal-Based Diet of Sex Reversed Red Tilapia (Oreochromis niloticus × O. mossambicus)." Animals 11, no. 8 (2021): 2287. http://dx.doi.org/10.3390/ani11082287.

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The solid-state fermentation by effective microorganisms (containing photosynthetic bacteria, lactic acid bacteria, nitrogen-fixing bacteria, yeast and Bacillus sp.) improved the nutritive values of palm kernel meal (PKM). Increased crude protein (20.79%), nitrogen-free extract (40.07%) and gross energy (19.58%) were observed in fermented PKM (FPKM) relative to raw PKM while crude lipid (15.65%), crude fiber (36.45%) and ash (29.54%) were decreased. Replacement of soybean meal (SBM) with FPKM as a protein source was investigated for its effects in sex-reversed red tilapia (Oreochromis niloticu

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Mangi, Mazhar Hussain, Tariq Hussain, Muhammad Suhaib Shahid, et al. "Effects of Flaxseed and Multi-Carbohydrase Enzymes on the Cecal Microbiota and Liver Inflammation of Laying Hens." Animals 11, no. 3 (2021): 600. http://dx.doi.org/10.3390/ani11030600.

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Background: The use of wheat and flaxseed to produce omega-3 (ω-3) enriched poultry meat and eggs is very popular in the world. However, wheat and flaxseed contain some anti-nutritional factors (ANFs), and enzymes are usually used to alleviate the deleterious influence of ANFs. Method: A 2 × 3 two factors design was used in the experiment. A total of 540 twenty-week-old Nongda-3 laying hens were randomly allocated to six dietary treatments, two diets (corn/flaxseed and wheat/flaxseed), and three enzymes (enzyme-a contains neutral protease 10,000, xylanase 35,000, β-mannanase 1500, β-glucanase

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SUN, Y., K. G. KOSKI, L. J. WYKES, and M. E. SCOTT. "Dietary pectin, but not cellulose, influences Heligmosomoides polygyrus (Nematoda) reproduction and intestinal morphology in the mouse." Parasitology 124, no. 4 (2002): 447–55. http://dx.doi.org/10.1017/s0031182001001391.

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Dietary texture has been reported to influence parasite establishment and survival, but to what degree this relationship is modified by either the type or quantity of dietary fibre is unknown. Using a 2×4 factorial design, we explored the relationship between fibre type (soluble = pectin vs insoluble = cellulose) and fibre quantity (0, 5, 10 and 20% by dry weight) on parasitic outcomes in BALB/c mice infected with 100 Heligmosomoides polygyrus (Nematoda) larvae. Pectin, but not cellulose, exerted a significant effect on parasite egg production. Following in vitro culture of female worms, incre

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Igarashi, Miki, Miku Morimoto, Asuka Suto, et al. "Synthetic dietary inulin, Fuji FF, delays development of diet-induced obesity by improving gut microbiota profiles and increasing short-chain fatty acid production." PeerJ 8 (April 8, 2020): e8893. http://dx.doi.org/10.7717/peerj.8893.

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Background Dietary fiber, including inulin, promotes health via fermentation products, such as short-chain fatty acids (SCFAs), produced from the fiber by gut microbiota. SCFAs exert positive physiological effects on energy metabolism, gut immunity, and the nervous system. Most of the commercial inulin is extracted from plant sources such as chicory roots, but it can also be enzymatically synthesized from sucrose using inulin producing enzymes. Studies conducted on rodents fed with a cafeteria diet have suggested that while increasing plasma propionic acid, synthetic inulin modulates glucose a

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MALAM MAMANE SANI, Ibrahim. "PASTORALISME ET CHANGEMENT CLIMATIQUE : COMPRENDRE ET ANALYSER LES FORMES DE STRATEGIES D’ADAPTATIONS DES PASTEURS DANS LA COMMUNE RURALE DE GADABEDJI DU NIGER." Kurukan Fuga 3, no. 10 (2024): 1–15. http://dx.doi.org/10.62197/qjpj3566.

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Cette recherche rentre dans le cadre du projet de Sécurité Alimentaire Renforcée par l’Elevage dans la commune rurale de Gadabedji au Niger. En effet, l’élevage constitue une des mamelles de l’économie nationale. Le changement climatique bouleverse le système pastoral au Niger. Le changement climatique varie d’une région à une autre avec des manifestations différentes. A travers cette étude, il s’agit d’analyser les formes de pastoralisme identifiées dans cette zone à forte dominance pastorale et les stratégies d’adaptation des éleveurs face aux pesanteurs opérées par le changement climatique

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Gee, J. M., W. Lee-Finglas, and I. T. Johnson. "Fermentable carbohydrate modulates postprandial enteroglucagon and gastrin release in rats." British Journal of Nutrition 75, no. 5 (1996): 757–66. http://dx.doi.org/10.1079/bjn19960179.

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We studied the effects of a fermentable sugar-alcohol (lactitol) on the concentrations of enteroglucagon and gastrin in the blood of rats for 7·5 h after feeding. The control and treatment groups were fed on semi-purified diets containing either non-fermentable cellulose or lactitol respectively, at 100 g/kg. Compared with the cellulose-fed group, the animals fed with lactitol had higher levels of enteroglucagon (5−10 times higher than control; P < 0·05) and lower serum gastrin (70−80% of control; P< 0.·05) for several hours after the withdrawal of feed. In contrast, varying the level of

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Otuechere, Chiagoziem A., Adewale Adewuyi, Olusegun L. Adebayo, et al. "Histomorphological and Redox Delineations in the Testis and Epididymis of Albino Rats Fed with Green-Synthesized Cellulose." Biology 9, no. 9 (2020): 246. http://dx.doi.org/10.3390/biology9090246.

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It has also become increasingly necessary to diversify the production of cellulose for biomedical applications. In this study, cellulose-green-synthesized from Sesamum indicum (GSC)—was administered orally to rats for 14 days as follows: control, 100, 200 and 400 mg/kg GSC. The impact of GSC on the antioxidant status and histomorphology of the testes and epididymis were studied. GSC had no effects on organ weights and organosomatic indices. In the testes, GSC caused nonsignificant changes in superoxide dismutase, catalase, reduced glutathione and nitric oxide levels, whereas it significantly d

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Zhai, Xichuan, Dehui Lin, Yan Zhao, Wenwen Li, and Xingbin Yang. "Enhanced anti-obesity effects of bacterial cellulose combined with konjac glucomannan in high-fat diet-fed C57BL/6J mice." Food & Function 9, no. 10 (2018): 5260–72. http://dx.doi.org/10.1039/c8fo01211c.

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This study aimed to investigate the effects of supplementation with bacterial cellulose (BC), konjac glucomannan (KGM) and combined BC/KGM fiber on high-fat (HF)-diet-induced obesity in C57BL/6J mice.

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Yang, Yongshou, Thanutchaporn Kumrungsee, Norihisa Kato, Shinji Fukuda, Manabu Kuroda, and Shotaro Yamaguchi. "Aspergillus-Derived Cellulase Preparation Exhibits Prebiotic-like Effects on Gut Microbiota in Rats." Fermentation 8, no. 2 (2022): 71. http://dx.doi.org/10.3390/fermentation8020071.

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Aspergillus-derived cellulase, which is involved in the production of Aspergillus-fermented foods, has been employed in the food and animal feed industries. However, the effect of dietary Aspergillus cellulase on health is poorly understood. Previously, we discovered that supplemental Aspergillus-derived protease and lipase preparations had substantial bifidogenic effects on rats fed a high-fat diet. Therefore, this study reports on the effects of a 0.1% dietary Aspergillus-derived cellulase preparation (CEL) on the gut microbiota of rats fed a high-fat diet. Gene sequencing analysis of 16S rR

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Grbić, Jovana, Aleksandra Đukić-Vuković, Dragana Mladenović, Saša Lazović, and Ljiljana Mojović. "Effect of non-thermal plasma on cellulose crystallinity and lignin content in corn stalks." Journal on Processing and Energy in Agriculture 26, no. 2 (2022): 52–56. http://dx.doi.org/10.5937/jpea26-36871.

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Lignocellulosic biomass is a cheap raw material that, thanks to its high carbohydrate content, can be used in fermentation to produce biofuels, biogas and other compounds. Its complex structure, including cellulose, hemicellulose and lignin, requires prior treatment of the biomass to facilitate hydrolysis to simple sugars. Today, biomass is only partially utilized and generates about 14% of the world's energy. This is because the most commonly used physical, chemical and physicochemical treatments are not sustainable. They are energy-consuming but still low in productivity and toxic inhibitors

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Khatun, Shahanaz, Md Ashraduzzaman, Md Rezaul Karim, Farzana Pervin, Nurul Absar, and Ahmad Rosma. "Purification and characterization of peroxidase from Moringa oleifera L. leaves." BioResources 7, no. 3 (2012): 3237–51. http://dx.doi.org/10.15376/biores.7.3.3237-3251.

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Peroxidase catalyzes the oxidation of various electron donor substrates such as phenol and aromatic amines in the presence of hydrogen peroxide. In this study, peroxidase was purified 164-fold from the leaves of Moringa oleifera L. with a recovery of 28% by ammonium sulphate precipitation, DEAE-cellulose column chromatography, Sephadex G-200 column chromatography, and Con-A column chromatography. SDS-PAGE showed a polypeptide band with molecular weight of 43 kDa. The enzyme was found to be a single subunit in nature. The purified enzyme displayed optimum activity at pH 6.0 and at a temperature

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Jia, Xuying, Yaohao Dun, Min Zhang, Yuxia Mei, Yingjun Li, and Yunxiang Liang. "Fermented Corn Straw Increases Cellulase Activity, Improves Rumen Fermentation, and Increases Nutrient Digestibility in Yichang White Goats." Fermentation 11, no. 3 (2025): 111. https://doi.org/10.3390/fermentation11030111.

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Corn, as a raw material supplying energy, plays an important role in animal husbandry. But in recent years, problems related to insufficient energy supply from corn have attracted increasing attention. Therefore, it is highly important to develop new energy-supplying materials to replace corn in animal diets. To study the feasibility of replacing corn with fermented corn straw in ruminants, 16 Yichang white goats were divided into two groups: those kept on a grain-based diet with dry corn straw (DS) and those fed a grain-based diet with fermented corn straw (FS). Corn in the FS group was repla

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Njoukam, Raphaël, L. Bock, J. Hebert, L. Mathieu, Robert Oliver, and Régis Peltier. "Ligniculture et maintien de la fertilité des sols dans l'Ouest-Cameroun." BOIS & FORETS DES TROPIQUES 249 (September 1, 1996): 33–49. https://doi.org/10.19182/bft1996.249.a19870.

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Dans les montagnes sub-humides de l'Ouest-Cameroun, s'est développée depuis quelques décennies l'une des sylvicultures privées les plus dynamiques d'Afrique. Des milliers de paysans y cultivent chacun quelques ares d'eucalyptus pour produire du bois de feu, des perches et des poteaux. L'État camerounais a également mis en œuvre une politique de plantations des terrains domaniaux, en utilisant des espèces productrices de bois d'œuvre, dont les pins. Ces boisements publics et privés ont un très bon rendement mais ils sont gérés sans apport d'intrants ; on peut donc se demander si une telle sylvi

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Cholewińska, Ewelina, Aleksandra Marzec, Przemysław Sołek, et al. "The Effect of Copper Nanoparticles and a Different Source of Dietary Fibre in the Diet on the Integrity of the Small Intestine in the Rat." Nutrients 15, no. 7 (2023): 1588. http://dx.doi.org/10.3390/nu15071588.

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The aim of the study was to verify the hypothesis regarding the effect of recommended (6.5 mg/kg) or enhanced (13 mg/kg) level of CuNPs in the diet in combination with different types of dietary fibre—cellulose (control), inulin, pectin or psyllium—on selected biological parameters of intestinal integrity in rats. Rats were randomly divided into 10 groups. The first two groups were fed a control diet that contained cellulose, and a mineral mixture with standard or enhanced content of CuCO3. Experimental groups were fed a diet supplemented with CuNPs (6.5 or 13 mg/kg) and combined with differen

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