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Articoli di riviste sul tema "Vitamin C loss"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 6 febbraio 2022

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1

Zhu, Ling-Ling, Jay Cao, Merry Sun, Tony Yuen, Raymond Zhou, Jianhua Li, Yuanzhen Peng, et al. "Vitamin C Prevents Hypogonadal Bone Loss." PLoS ONE 7, no. 10 (October 8, 2012): e47058. http://dx.doi.org/10.1371/journal.pone.0047058.

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Curhan, Sharon G., Konstantina M. Stankovic, Roland D. Eavey, Molin Wang, Meir J. Stampfer, and Gary C. Curhan. "Carotenoids, vitamin A, vitamin C, vitamin E, and folate and risk of self-reported hearing loss in women." American Journal of Clinical Nutrition 102, no. 5 (September 9, 2015): 1167–75. http://dx.doi.org/10.3945/ajcn.115.109314.

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ABSTRACT Background: Higher intake of certain vitamins may protect against cochlear damage from vascular compromise and oxidative stress, thereby reducing risk of acquired hearing loss, but data are limited. Objective: We prospectively examined the relation between carotenoids, vitamin A, vitamin C, vitamin E, and folate intake and risk of self-reported hearing loss in women. Design: This prospective cohort study followed 65,521 women in the Nurses’ Health Study II from 1991 to 2009. Baseline and updated information obtained from validated biennial questionnaires was used in Cox proportional h
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3

Drouin, Guy, Jean-Remi Godin, and Benoit Page. "The Genetics of Vitamin C Loss in Vertebrates." Current Genomics 12, no. 5 (August 1, 2011): 371–78. http://dx.doi.org/10.2174/138920211796429736.

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Afolabi, Ayobami Oladele, Olaolu Opeyemi Olotu, and Isiaka Abdullateef Alagbonsi. "Vitamins E and C Alleviate the Germ Cell Loss and Oxidative Stress in Cryptorchidism When Administered Separately but Not When Combined in Rats." ISRN Pharmacology 2012 (October 30, 2012): 1–8. http://dx.doi.org/10.5402/2012/843569.

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The antioxidant effects of vitamins C and E on cryptorchidism-induced oxidative stress were investigated in male Sprague-Dawley rats. Forty rats (200–250 g) were randomly divided in a blinded fashion into five groups (). Group 1 was sham operated and treated with vehicle (corn-oil, 10 mL/kg). Groups 2, 3, 4, and 5 were rendered unilaterally cryptorchid and treated with vehicle (10 mL/kg), vitamin E solution (75 mg/kg), vitamin C solution (1.25 g/kg), and combination of vitamin E (75 mg/kg) and vitamin C (1.25 g/kg) solutions, respectively. Germ cell count, superoxide dismutase (SOD), total pro
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Cui, Jie, Xinpu Yuan, Lina Wang, Gareth Jones, and Shuyi Zhang. "Recent Loss of Vitamin C Biosynthesis Ability in Bats." PLoS ONE 6, no. 11 (November 1, 2011): e27114. http://dx.doi.org/10.1371/journal.pone.0027114.

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May, James M., Zhi-chao Qu, Huan Qiao, and Mark J. Koury. "Maturational loss of the vitamin C transporter in erythrocytes." Biochemical and Biophysical Research Communications 360, no. 1 (August 2007): 295–98. http://dx.doi.org/10.1016/j.bbrc.2007.06.072.

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Halpner, Andrew D., Garry J. Handelman, Jason M. Harris, Cheryl A. Belmont, and Jeffrey B. Blumberg. "Protection by Vitamin C of Loss of Vitamin E in Cultured Rat Hepatocytes." Archives of Biochemistry and Biophysics 359, no. 2 (November 1998): 305–9. http://dx.doi.org/10.1006/abbi.1998.0914.

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Cvetkovic, Biljana, and Marija Jokanovic. "Effect of preservation method and storage condition on ascorbic acid loss in beverages." Acta Periodica Technologica, no. 40 (2009): 1–7. http://dx.doi.org/10.2298/apt0940001c.

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Global market is flooded with vitamin-enriched foods, mainly beverages. Major vitamins for enriching beverages are the antioxidant vitamins A, C and E. Ascorbic acid is readily oxidized and lost during storage of the beverages, at rates depending on the conditions of storage. This fact is of great importance for the consumer who must know how to store beverages and when to consume them in order to get the maximum benefit of added vitamin C. The objective of this paper was to determine the amount of ascorbic acid lost in beverages applying different preservation methods and storage condition. B
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Busso, Dolores, Andrea David, Reyna Penailillo, Guadalupe Echeverría, Attilio Rigotti, Irina Kovalskys, Georgina Gómez, et al. "Intake of Vitamin E and C in Women of Reproductive Age: Results from the Latin American Study of Nutrition and Health (ELANS)." Nutrients 13, no. 6 (June 7, 2021): 1954. http://dx.doi.org/10.3390/nu13061954.

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Vitamin E was identified as a lipophilic compound essential to maintain rat pregnancy. Low vitamin E intake during early pregnancy associates with congenital malformations and embryonic loss in animals and with miscarriage and intrauterine growth restriction in humans. Vitamin E protects cell membranes from lipoperoxidation and exerts non-antioxidant activities. Its function can be restored by vitamin C; thus, intake and circulating levels of both micronutrients are frequently analyzed together. Although substantial vitamin E inadequacy was reported worldwide, its consumption in Latin America
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Deyhim, Farzad, Kimberly Strong, Niaz Deyhim, Sarvenaz Vandyousefi, Alexis Stamatikos, and Bahram Faraji. "Vitamin C reverses bone loss in an osteopenic rat model of osteoporosis." International Journal for Vitamin and Nutrition Research 88, no. 1-2 (February 1, 2018): 58–64. http://dx.doi.org/10.1024/0300-9831/a000486.

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Abstract. Fruits and vegetables are rich in vitamin C with antioxidant properties which are known to influence bone quality. This study evaluated whether vitamin C (1000 mg/L) added to drinking water reverses the bone loss in ovariectomized rats. Ninety-day-old female Sprague-Dawley rats were randomly assigned to either sham (n = 14) or ovariecotmized groups (n = 28). Sixty days after ovariectomy, the treatments were sham, ovariectomy (OVX), OVX + vitamin C (22 mg oral intake daily) for 60 days. Urine was collected for deoxypyridinoline (DPD) evaluation, rats were sacrificed, and antioxidant c
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11

Halpner, Andrew D., Garry J. Handelman, Cheryl A. Belmont, Jason M. Harris, and Jeffrey B. Blumberg. "Protection by vitamin C of oxidant-induced loss of vitamin E in rat hepatocytes." Journal of Nutritional Biochemistry 9, no. 6 (June 1998): 355–59. http://dx.doi.org/10.1016/s0955-2863(98)00019-9.

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Hatano, Miyako, Naoki Uramoto, Yozo Okabe, Mitsuru Furukawa, and >Makoto Ito. "Vitamin E and vitamin C in the treatment of idiopathic sudden sensorineural hearing loss." Acta Oto-Laryngologica 128, no. 2 (January 2008): 116–21. http://dx.doi.org/10.1080/00016480701387132.

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Hornung, Tabea C., and Hans-Konrad Biesalski. "Glut-1 explains the evolutionary advantage of the loss of endogenous vitamin C-synthesis." Evolution, Medicine, and Public Health 2019, no. 1 (January 1, 2019): 221–31. http://dx.doi.org/10.1093/emph/eoz024.

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Abstract Introduction During evolution, some species including humans, monkeys and fruit bats lost the ability for ascorbic acid (AA) biosynthesis due to inactivation of the enzyme l-gulono-lactone oxidase (GLO) and subsequently became dependent on dietary vitamin C. There are four current hypotheses in relation to the benefit of vitamin C dependence in the context of adaptation and reproduction. Here we advance and test a new ‘electron transfer hypothesis’, which focusses on the role of the expression of glucose transporter 1 (Glut-1) in red blood cells (RBCs) in recycling vitamin C, thereby
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Takahashi, Fuyuko, Yoshitaka Hashimoto, Ayumi Kaji, Ryosuke Sakai, Yuka Kawate, Takuro Okamura, Yuriko Kondo, et al. "Vitamin Intake and Loss of Muscle Mass in Older People with Type 2 Diabetes: A Prospective Study of the KAMOGAWA-DM Cohort." Nutrients 13, no. 7 (July 8, 2021): 2335. http://dx.doi.org/10.3390/nu13072335.

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The aim of this prospective cohort study was to examine the relationships between the intakes of various vitamins and the loss of muscle mass in older people with type 2 diabetes (T2DM). The change in skeletal muscle mass index (SMI, kg/m2) (kg/m2/year) was defined as follows: (SMI at baseline (kg/m2) − SMI at follow-up (kg/m2))/follow-up period (year). The rate of SMI reduction (%) was calculated as follows (the change in SMI (kg/m2/year)/SMI at baseline (kg/m2)) × 100. The rate of SMI reduction ≥ 1.2% was considered as the loss of muscle mass. Among 197 people with T2DM, 47.2% of them experi
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15

Cui, Jie, Yi-Hsuan Pan, Yijian Zhang, Gareth Jones, and Shuyi Zhang. "Progressive Pseudogenization: Vitamin C Synthesis and Its Loss in Bats." Molecular Biology and Evolution 28, no. 2 (October 29, 2010): 1025–31. http://dx.doi.org/10.1093/molbev/msq286.

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16

Carlson, Beth L., and Mary H. Tabacchi. "Loss of vitamin C in vegetables during the foodservice cycle." Journal of the American Dietetic Association 88, no. 1 (January 1988): 65–67. http://dx.doi.org/10.1016/s0002-8223(21)01917-9.

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Kholis, Nur, Ujang Suryadi, and Faturrahman Roni. "Pengaruh Suplementasi Vitamin C dan Jarak Transportasi Terhadap Penyusutan Bobot Badan Broiler." Jurnal Ilmu Peternakan Terapan 2, no. 1 (December 28, 2018): 27–33. http://dx.doi.org/10.25047/jipt.v2i1.1166.

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The purpose of this study was to know the effect of vitamin C supplementation and distance transportation on broiler weight loss. The method used in this study using 128 days of unisexing broiler. The experimental design used a Factorial Completely Randomized Design. The experimental factor consisted of 2 factors, such as the distance factor with 2 levels, 24 km (a1) and 48 km (a2), and the sumplemetation factor of vitamin C with 4 levels such as 0 mg/L (b1), 250 mg/L (b2), 500 mg/L (b3), and 750 mg/L (b4). The experiment was 4 times replication. If obtained significantly result, continued by
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Samsel, Konrad, and Abizar Meghani. "The Effects of Commercial Freezing on Vitamin Concentrations in Spinach (Spinacia oleracea)." Journal of Undergraduate Life Sciences 15, no. 1 (July 23, 2021): 9. http://dx.doi.org/10.33137/juls.v15i1.37032.

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Commercial food processing has had a significant impact on reducing food spoilage and increasing accessibility to nutrient-dense vegetables. The commercial freezing process, in particular, has given producers the ability to store vegetables with minimized risk of microbial and enzymatic spoilage. Despite the effectiveness of freezing as a preservation method, there is evidence that pre-freezing procedures and prolonged storage can reduce the concentration of vitamins present within certain vegetables. Spinach, one of the most widely produced and consumed vegetables, is particularly susceptible
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19

Lahučký, R., IBahelka, K. Novotná, and K. Vašíčková. "Effects of dietary vitamin E and vitamin C supplementation on the level of α-tocopherol and L-ascorbic acid in muscle and on the antioxidative status and meat quality of pigs." Czech Journal of Animal Science 50, No. 4 (December 6, 2011): 175–84. http://dx.doi.org/10.17221/4012-cjas.

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In total thirty pigs (Slovak Meaty) defined by DNA based test as not susceptible to malignant hyperthermia (non-mutant on RYR1) were used in the experiment. Treatment consisted in supplementation of vitamin E (500 mg α-tocopherol/kg diet as α-tocopherol acetate) (group E) and the same doses of vitamin E plus vitamin C (200 mg L-ascorbic acid/kg diet) (group E + C) to finishing pigs for the last 30 days before slaughter. The higher dietary vitamin E level resulted in higher levels of α-tocopherol in fresh (24 h), chill-stored (5 days, 4°C), chill-stored and
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20

FELLMAN, ROSE L., PAUL S. DIMICK, and RUTH HOLLENDER. "Photooxidative Stability of Vitamin A Fortified 2% Lowfat Milk and Skim Milk." Journal of Food Protection 54, no. 2 (February 1, 1991): 113–16. http://dx.doi.org/10.4315/0362-028x-54.2.113.

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Lowfat milk and skim milk were fortified with either oil- or aqueous-based carrier blends of vitamins A and D, in 1-gal poly-ethylene containers, and illuminated up to 72 h with 1080 1× (100 ft-c) at 5°C in a commercial display case. Vitamin A measurments and sensory analyses showed that vitamin A was more stable in 2% lowfat milk than in skim milk regardless of the carrier. The aqueous-based carrier provided more stability in lowfat milk while the oil-based carrier gave more stability in skim milk. Skim milk fortified with the aqueous-based vitamin A had 69% loss, while the unexposed control
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Lavoie, Jean-Claude, Philippe Chessex, Thérèse Rouleau, Diane Migneault, and Blandine Comte. "Light-Induced Byproducts of Vitamin C in Multivitamin Solutions." Clinical Chemistry 50, no. 1 (January 1, 2004): 135–40. http://dx.doi.org/10.1373/clinchem.2003.025338.

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Abstract Background: When solutions of multivitamin preparations (MVPs) are exposed to light, H2O2 as well as organic peroxides are generated and the concentration of vitamin C decreases. The aim of this study was to determine, using mass spectrometry, whether the generation of oxidative byproducts of vitamin C, such as dehydroascorbate (DHA) and 2,3-diketogulonic acid (DKG), accounted for the reported decrease in ascorbic acid in MVPs exposed to light. Methods: Mass spectrometry was used to document the formation of byproducts of ascorbic acid in solutions containing a MVP, vitamin C + ribofl
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Nejatinamini, Sara, Brock Debenham, Robin Clugston, Asifa Mawani, Matthew Parliament, Wendy Wismer, and Vera Mazurak. "Poor Vitamin Status is Associated with Skeletal Muscle Loss and Mucositis in Head and Neck Cancer Patients." Nutrients 10, no. 9 (September 5, 2018): 1236. http://dx.doi.org/10.3390/nu10091236.

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Mucositis and muscle wasting are two common toxicity effects of cancer treatment in head and neck cancer (HNC). There is limited data evaluating cancer treatment toxicities in relation to vitamin status. This study aimed to assess changes in vitamin status during HNC treatment in relation to body composition, inflammation and mucositis. In this prospective cohort study, dietary intakes (3-day food record), plasma levels of vitamins and C-reactive protein (CRP) were assessed at baseline (at diagnosis) and post-treatment (after 6–8 weeks of radiation therapy with or without chemotherapy). Comput
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Yavuz, Turhan, Irfan Altuntas, Namik Delibas, Bekir Yildirim, Ozden Candir, Ahmet Corâ, Nermin Karahan, Erdogan Ibrisim, and Ali Kutsal. "Cardiotoxicity in rats induced by methidathion and ameliorating effect of vitamins E and C." Human & Experimental Toxicology 23, no. 7 (July 2004): 323–29. http://dx.doi.org/10.1191/0960327104ht456oa.

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We have examined the effect of subchronic methidathion (MD) administration on heart damage, and have evaluated possible ameliorating effects of a combination of vitamins E and C against MD toxicity. The experimental groups were: control group, rats treated with 5 mg/kg MD and rats treated with 5 mg/kg body weight MD plus vitamin E and vitamin C (MD+Vit). The groups were given MD by gavage 5 days a week for four weeks at a dose level of 5 mg/kg/day (MD and MD+Vit) by using corn oil as the vehicle. Vitamin E and vitamin C were injected at doses of 50 mg/kg i.m. and 20 mg/kg i.p., respectively, a
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Ramezanipour, Masoud, Mahmood Jalali, Haleh Sadrzade-Yeganeh, Seyed Ali Keshavarz, Mohammad Reza Eshraghian, Minoo Bagheri, and Sara Seyed Emami. "The effect of weight reduction on antioxidant enzymes and their association with dietary intake of vitamins A, C and E." Arquivos Brasileiros de Endocrinologia & Metabologia 58, no. 7 (October 2014): 744–49. http://dx.doi.org/10.1590/0004-2730000003206.

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Objective Our goal was to assess the effects of weight loss on antioxidant enzymes of red blood cells and it’s relation with vitamins A, E and C intake in 30 obese women. Subjects and methods General information, anthropometric measurements, 3-day food recall, and fasting blood samples were collected from 30 obese women at the beginning of the study and after 3 months intervention. Weight loss was set at about 10% of their weight before the intervention. Results Glutathione reductase and catalase activities showed a significant increase (P < 0.01) after weight reduction, but no significant
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Belbase, Rupesh Jung, Amrut Diwakar Raje, and Anchal Singh. "A review on the role of macro and micro nutrients in bone health." International Journal of Research in Orthopaedics 5, no. 5 (August 26, 2019): 995. http://dx.doi.org/10.18203/issn.2455-4510.intjresorthop20193851.

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<p class="abstract">Osteoporosis is a major public health problem, affecting many individuals. The aging population will require problem related prevention, education, and treatment to maintain bone density and reduce the bone fractures and falls. Inadequate intake of nutrients increases the risk for bone loss and subsequent osteoporosis. Protein, calcium and vitamin D are vital nutrients for optimal bone health. Adequate calcium is essential for bone maintenance. There are several other vitamin and mineral needed for metabolic processes related to good bone health, including manganese,
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Paciolla, Costantino, Stefania Fortunato, Nunzio Dipierro, Annalisa Paradiso, Silvana De Leonardis, Linda Mastropasqua, and Maria Concetta de Pinto. "Vitamin C in Plants: From Functions to Biofortification." Antioxidants 8, no. 11 (October 29, 2019): 519. http://dx.doi.org/10.3390/antiox8110519.

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Vitamin C (l-ascorbic acid) is an excellent free radical scavenger, not only for its capability to donate reducing equivalents but also for the relative stability of the derived monodehydroascorbate radical. However, vitamin C is not only an antioxidant, since it is also a cofactor for numerous enzymes involved in plant and human metabolism. In humans, vitamin C takes part in various physiological processes, such as iron absorption, collagen synthesis, immune stimulation, and epigenetic regulation. Due to the functional loss of the gene coding for l-gulonolactone oxidase, humans cannot synthes
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Ibrahim, Iman, Anthony Zeitouni, and Sabrina Daniela da Silva. "Effect of Antioxidant Vitamins as Adjuvant Therapy for Sudden Sensorineural Hearing Loss: Systematic Review Study." Audiology and Neurotology 23, no. 1 (2018): 1–7. http://dx.doi.org/10.1159/000486274.

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Importance: Sudden sensorineural hearing loss (SSNHL) is an otological emergency of unknown etiology. Recent reports showed that antioxidant drugs can benefit patients with SSNHL. This study attempted to evaluate the effect of adding antioxidant vitamins as an adjuvant therapy alongside with corticosteroids. Objective: To evaluate the effects of the 3 major antioxidant vitamins (A, C, and E) as an adjuvant therapy, administered with corticosteroids, for the treatment of SSNHL in adult patients (≥18 years). Data Sources: MEDLINE, EMBASE, PubMed, Web of Science and Cochrane electronic databases
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Johnston, Carol S. "Strategies for Healthy Weight Loss: From Vitamin C to the Glycemic Response." Journal of the American College of Nutrition 24, no. 3 (June 2005): 158–65. http://dx.doi.org/10.1080/07315724.2005.10719460.

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Wills, R. B. H., and Jansen Silalahi. "Effect of storage temperature on loss of vitamin C in potato crisps." Journal of the Science of Food and Agriculture 53, no. 2 (1990): 275–78. http://dx.doi.org/10.1002/jsfa.2740530216.

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Hu, Jinwei, O’neil Guthrie, Subburaman Mohan, and Timothy T. K. Jung. "Vitamin C Deficiency–Induced Hearing Loss and Ossicular Defect in Transgenic Mice." Otolaryngology–Head and Neck Surgery 149, no. 2_suppl (August 23, 2013): P239. http://dx.doi.org/10.1177/0194599813496044a296.

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McFadden, Sandra L., Jenifer M. Woo, Nathan Michalak, and Dalian Ding. "Dietary vitamin C supplementation reduces noise-induced hearing loss in guinea pigs." Hearing Research 202, no. 1-2 (April 2005): 200–208. http://dx.doi.org/10.1016/j.heares.2004.10.011.

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Maidhah, Andi, and Shinta Tri Kismanti. "VITAMIN C SEBAGAI INHIBITOR KOROSI BAJA API 5L GRADE B DENGAN VARIASI ALIRAN DI LINGKUNGAN ASAM LEMAH PH 5." INOVTEK POLBENG 9, no. 1 (July 3, 2019): 103. http://dx.doi.org/10.35314/ip.v9i1.963.

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Senyawa organik yang aman pemakaiannya pada lingkungan dan tersedia secara komersial menjadi alasan pemakaian vitamin C sebagai inhibitor korosi untuk baja API 5L grade B. Penghambatan korosi pada baja API 5L grade B di lingkungan asam pH 5 oleh vitamin C dilakukan dengan metode weight loss, polarisasi linear, foto makro, dan FTIR. Nilai laju korosi baja API 5L grade B dan efisiensi inhibitor didapatkan dari uji weight loss selama 30 hari perendaman dengan variasi konsentrasi inhibitor vitamin C mulai dari 0- 250 ppm dilingkungan asam pH 5. Lingkungan logam diberi variasi putaran dari 200 dan
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Ebrahem, Kais S., Daryl G. Richardson, and Richard M. Tetley. "274 EFFECTS OF STORAGE TEMPERATURE, KERNEL INTACTNESS, AND ROASTING TEMPERATURE ON VITAMIN E, FATTY ACIDS AND PEROXIDE VALUE OF HAZELNUTS." HortScience 29, no. 5 (May 1994): 469c—469. http://dx.doi.org/10.21273/hortsci.29.5.469c.

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Kernels in the shell were compared to bare kernels with pellicles, half nuts, blanched nuts, finely chopped nuts, and roasted nuts. Whole nuts and whole kernels were stable for up to two years of storage provided they had not been exposed to high temperatures. Nuts stored at low temperatures (0 and 5°C) did not lose significant amounts of vitamin E. Increasing surface area by dividing nuts or finely chopping them, increased the loss of vitamin E. Samples that had lower surface areas did not lose much vitamin E and peroxide value was low. Higher roasting temperatures caused losses in vitamin E
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Welch, Ailsa A. "Nutritional influences on age-related skeletal muscle loss." Proceedings of the Nutrition Society 73, no. 1 (November 12, 2013): 16–33. http://dx.doi.org/10.1017/s0029665113003698.

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Age-related muscle loss impacts on whole-body metabolism and leads to frailty and sarcopenia, which are risk factors for fractures and mortality. Although nutrients are integral to muscle metabolism the relationship between nutrition and muscle loss has only been extensively investigated for protein and amino acids. The objective of the present paper is to describe other aspects of nutrition and their association with skeletal muscle mass. Mechanisms for muscle loss relate to imbalance in protein turnover with a number of anabolic pathways of which the mechanistic TOR pathway and the IGF-1–Akt
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Agarwal, Ankita, David N. Hager, and Jonathan E. Sevransky. "Any Role of High-Dose Vitamin C for Septic Shock in 2021?" Seminars in Respiratory and Critical Care Medicine 42, no. 05 (September 20, 2021): 672–82. http://dx.doi.org/10.1055/s-0041-1733986.

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AbstractWhile the use of vitamin C as a therapeutic agent has been investigated since the 1950s, there has been substantial recent interest in the role of vitamin C supplementation in critical illness and particularly, sepsis and septic shock. Humans cannot synthesize vitamin C and rely on exogenous intake to maintain a plasma concentration of approximately 70 to 80 μmol/L. Vitamin C, in healthy humans, is involved with antioxidant function, wound healing, endothelial function, and catecholamine synthesis. Its function in the human body informs the theoretical basis for why vitamin C supplemen
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Berrocal, M. C., and A. Abeger. "Note. Shelf life of a saturated vitamin E carrier system for use in the food industry / Nota. Vida útil de un sistema de microencapsulación de vitamina E para alimentos." Food Science and Technology International 5, no. 6 (December 1999): 509–13. http://dx.doi.org/10.1177/108201329900500609.

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Dimyristoylphosphatidylcholine liposomes containing different concentrations of vitamin E (0, 5, 15 and 25%) were prepared by extrusion through 100 nm pore size filters, and stored at 5 °C in the dark under an oxygen atmosphere. The physico-chemical characteristics chosen as shelf life indicators for this vitamin E-carrier system were vitamin E fluorescence, mean diameter of the system, products of phospholipid oxidation and total products of lipid degradation. Encapsulated vitamins underwent an exponential degradation process (first order kinetics). The complete alteration of the system was c
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Byarushengo, Denice, Rwaichi Minja, and Abraham Temu. "Lemongrass and Cinnamon Essential Oils as Vitamin C Preservatives and Flavour Enhancers in Jam." Tanzania Journal of Engineering and Technology 35, no. 1 (June 30, 2014): 46–53. http://dx.doi.org/10.52339/tjet.v35i1.468.

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Lemongrass and cinnamon essential oils (LEO and CEO) are natural oils with high anti-oxidation capacity, pleasant flavour, and various health benefits. Their ability to preservevitamin C and flavour in jam have not been tested. In this study the performance of twoessential oils (EOs) in preserving vitamin C and improving jam flavour were investigated.The EOs were produced by hydro-steam distillation of fresh lemongrasses and cinnamonleaves using a Clevenger apparatus. Jam samples were dosed with various concentrationsof either single or mixed EOs and then stored at either room or refrigeration
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Reis, Luzia Caroline Ramos dos, Ester Alice Ferreira, Heloisa Helena Siqueira Elias, Eduardo Valerio Vilas Boas, and Alessandro De Oliveira Rios. "Postharvest conservation of fresh and minimally processed ‘Dekopon’ tangerine in different temperatures and storage times." Brazilian Journal of Food Research 9, no. 1 (January 1, 2018): 112. http://dx.doi.org/10.3895/rebrapa.v9n1.5348.

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Abstract (sommario):
This study aimed to evaluate the effect of refrigeration and the storage time of fresh and minimally processed tangerine 'Dekopon' seeking to increase its useful life for marketing. In experiment 1, the harvested fruit were stored in temperatures of 4, 8 and 12 °C and analyzed in 0, 5 and 10 days. In experiment 2, the fruit were minimally processed and storage at temperatures of 4, 8 and 12 °C and analyzed 0, 3, 6, 9 and 12 days. The analysis of the evaluated data were weight loss, pH, total soluble solids (TSS), titratable acidity (TA), ratio TSS:TA, Vitamin C and color parameters. The result
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39

Liu, An Jun, Jing Guo, Ying Chen, Zi Jian Wang, and An Guo Teng. "Protective Effects of Processing Condition and Antioxidant on Vitamin A in Chicken Liver Sausage." Advanced Materials Research 864-867 (December 2013): 541–44. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.541.

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Abstract (sommario):
In this study, the protective effects of processing conditions and antioxidants on vitamin A in chicken liver sausage were investigated. The optimal cooking conditions were determined: 80°C 30min. Under this condition, vitamin A loss rate was lowest. Different types of antioxidants vitamin C (ascorbic acid)EDTA-2Na (ethylenediaminetetraacetic acid disodium salt)BHT (2,4-di-tert.-butyl hydroxytoluene) were added to protect vitamin A. The results indicated the added antioxidants have obvious protective effects on vitamin A, and the protection effect of BHT is better than the others.
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40

Yue, Xiaojing, and Anjana Rao. "TET family dioxygenases and the TET activator vitamin C in immune responses and cancer." Blood 136, no. 12 (September 17, 2020): 1394–401. http://dx.doi.org/10.1182/blood.2019004158.

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Abstract (sommario):
Abstract Vitamin C serves as a cofactor for Fe(II) and 2-oxoglutarate–dependent dioxygenases including TET family enzymes, which catalyze the oxidation of 5-methylcytosine into 5-hydroxymethylcytosine and further oxidize methylcytosines. Loss-of-function mutations in epigenetic regulators such as TET genes are prevalent in hematopoietic malignancies. Vitamin C deficiency is frequently observed in cancer patients. In this review, we discuss the role of vitamin C and TET proteins in cancer, with a focus on hematopoietic malignancies, T regulatory cells, and other immune system cells.
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41

Lewis, Lucy N., Richard P. G. Hayhoe, Angela A. Mulligan, Robert N. Luben, Kay-Tee Khaw, and Ailsa A. Welch. "Lower Dietary and Circulating Vitamin C in Middle- and Older-Aged Men and Women Are Associated with Lower Estimated Skeletal Muscle Mass." Journal of Nutrition 150, no. 10 (August 27, 2020): 2789–98. http://dx.doi.org/10.1093/jn/nxaa221.

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Abstract (sommario):
ABSTRACT Background Age-related loss of skeletal muscle mass contributes to poor outcomes including sarcopenia, physical disability, frailty, type 2 diabetes, and mortality. Vitamin C has physiological relevance to skeletal muscle and may protect it during aging, but few studies have investigated its importance in older populations. Objectives We aimed to investigate cross-sectional associations of dietary and plasma vitamin C with proxy measures of skeletal muscle mass in a large cohort of middle- and older-aged individuals. Methods We analyzed data from >13,000 men and women in the Eu
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42

Varadharaj, Saradhadevi, Tonya Watkins, Arturo J. Cardounel, Joe G. N. Garcia, Jay L. Zweier, Periannan Kuppusamy, Viswanathan Natarajan, and Narasimham L. Parinandi. "Vitamin C-Induced Loss of Redox-Dependent Viability in Lung Microvascular Endothelial Cells." Antioxidants & Redox Signaling 7, no. 1-2 (January 2005): 287–300. http://dx.doi.org/10.1089/ars.2005.7.287.

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43

Kunes, Jacob P., Katie S. Cordero-Koning, Lionel H. Lee, and Sean M. Lynch. "Vitamin C attenuates hypochlorite-mediated loss of paraoxonase-1 activity from human plasma." Nutrition Research 29, no. 2 (February 2009): 114–22. http://dx.doi.org/10.1016/j.nutres.2009.01.003.

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44

Marhiere Akpomie, Timothy, Musa Safiyanu Tanko, and Umar Faruk Hassan. "Modeling the Rate of Vitamin C Loss in Five Different Fruits During Storage." Mathematical Modelling and Applications 5, no. 4 (2020): 214. http://dx.doi.org/10.11648/j.mma.20200504.12.

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45

Munday, Molly-Rose, Rohan Rodricks, Michael Fitzpatrick, Victoria M. Flood, and Jenny E. Gunton. "A Pilot Study Examining Vitamin C Levels in Periodontal Patients." Nutrients 12, no. 8 (July 28, 2020): 2255. http://dx.doi.org/10.3390/nu12082255.

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Abstract (sommario):
Background: Periodontal disease is the leading cause of tooth loss worldwide. Current periodontal treatment is limited by its dependency on patients learning and maintaining good dental habits, and repeated visits to oral health physicians. Vitamin C’s role in collagen synthesis and immune function makes it important in wound healing and possibly periodontal healing. Therefore, if some patients are deficient, this may worsen patient outcomes. Methods: Patients were invited to participate following assessment and treatment at the Westmead Centre of Oral Health Periodontic Clinic, regardless of
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46

Slamet, Riskiono. "PELAPISAN CABE MERAH DENGAN NANOPARTIKEL KITOSAN UNTUK MENGHAMBAT KEHILANGAN VITAMIN C DAN SUSUT BOBOT." JRSKT - Jurnal Riset Sains dan Kimia Terapan 1, no. 1 (June 30, 2011): 1. http://dx.doi.org/10.21009/jrskt.011.01.

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Abstract (sommario):
In this research the possible use of chitosan nanoparticle coating on green peppers (Capsium annuum L) after harvesting and to determined the effect of chitosan nanoparticle coating formulation to control the barrier properties toward water and oxygen.was investigated. Manually green peppers were treated with a solution of 1% ,2% and 3% nanoparticle chitosan and then stored at 200C. The parameters of physcochemical properties such as weight loss and ascorbic acid concentrations, were monitored during storage 4 days until 16 days. Results indicated that the physicochemical properties of weight
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47

Dawn, Indranil, Susmita Sarkar, and Chinmoy De. "A comparative study between Antioxidant vitamin and Kellgren–Lawrence grading scale in knee osteoarthritis patients." Bangladesh Journal of Medical Science 13, no. 1 (December 24, 2013): 30–35. http://dx.doi.org/10.3329/bjms.v13i1.14046.

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Abstract (sommario):
Osteoarthritis (OA) is a strongly age-related joint disorder that is defined as a gradual loss of articular cartilage. Current concepts of the pathogenic mechanisms of OA suggest that there isa shift in the homeostatic balance between the destruction and synthesis of bone and cartilage,with a net progressive destruction of these tissues. Recent studies of the biology of chondrocytes show that these cells actively produce reactive oxygen species (ROS). ROS are capable of inducing apoptotic cell death in chondrocytes, but more important, they can result in the degradation of aggrecan and collage
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48

CARR, Anitra C., Terry TIJERINA, and Balz FREI. "Vitamin C protects against and reverses specific hypochlorous acid- and chloramine-dependent modifications of low-density lipoprotein." Biochemical Journal 346, no. 2 (February 22, 2000): 491–99. http://dx.doi.org/10.1042/bj3460491.

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Abstract (sommario):
Activated phagocytes produce the highly reactive oxidant hypochlorous acid (HOCl) via the myeloperoxidase-catalysed reaction of hydrogen peroxide with chloride ions. HOCl reacts readily with a number of susceptible targets on apolipoprotein B-100 of low-density lipoprotein (LDL), resulting in uncontrolled uptake of HOCl-modified LDL by macrophages. We have investigated the efects of vitamin C (ascorbate), an effective water-soluble antioxidant, on the HOCl- and chloramine-dependent modification of LDL. Co-incubation of vitamin C (25-200 μM) with LDL resulted in concentration-dependent protecti
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49

Zang, Qun, David L. Maass, Jean White, and Jureta W. Horton. "Cardiac mitochondrial damage and loss of ROS defense after burn injury: the beneficial effects of antioxidant therapy." Journal of Applied Physiology 102, no. 1 (January 2007): 103–12. http://dx.doi.org/10.1152/japplphysiol.00359.2006.

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Abstract (sommario):
Mechanisms of burn-related cardiac dysfunction may involve defects in mitochondria. This study determined 1) whether burn injury alters myocardial mitochondrial integrity and function; and 2) whether an antioxidant vitamin therapy prevented changes in cardiac mitochondrial function after burn. Sprague-Dawley rats were given a 3° burn over 40% total body surface area and fluid resuscitated. Antioxidant vitamins or vehicle were given to sham and burn rats. Mitochondrial and cytosolic fractions were prepared from heart tissues at several times postburn. In mitochondria, lipid peroxidation was mea
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50

Rozana, Rozana, and Sunardi Sunardi. "MINIMALLY PROCESS PADA BUAH RAMBUTAN DAN PERUBAHAN KANDUNGAN VITAMIN C SELAMA PENYIMPANAN BEKU." Journal of Food Technology and Agroindustry 3, no. 1 (February 23, 2021): 36–44. http://dx.doi.org/10.24929/jfta.v3i1.1247.

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Abstract (sommario):
Fresh-cut rambutan products not only have to look fresh, but must have sensory properties (aroma, taste, texture, and visual appeal) similar to fresh products, they must also be safe, healthy and nutritious. So it is necessary to characterize the quality, especially vitamin C from fresh-cut rambutan products which are vacuum packed and stored at frozen temperatures. The purpose of this study was to determine the effect of frozen storage on changes in vitamin C in minimally processed rambutan. The material used in this study was fresh rambutan fruit, Si Kuning variety, obtained from rambutan co
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