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Dissertations / Theses on the topic 'Fruit nutritional quality'

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1

Novela, Precious. "Delayed fruit harvest on yield, nutritional value and post-harvest quality of late maturing reed avocado (Persea Americana Mill)." Thesis, University of Limpopo, 2016. http://hdl.handle.net/10386/1711.

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Thesis (MSc .(Plant Production)) -- University of Limpopo, 2016<br>Delayed fruit harvest (DFH) or on-tree-fruit storage is a strategy being considered to extend the harvest season of late maturing ‘Reed’ avocado. However, avocado fruit growth beyond physiological maturity is accompanied by alterations in chemical and physical properties. Thus, the study aimed to investigate the effects of delayed harvest on tree productivity, mineral nutrition and post-harvest quality of late maturing ‘Reed’ avocado and further to evaluate the fruit quality response to varying ripening temperature regimes. As
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2

DI, VITTORI LUCIA. "Improving the sensorial and nutritional quality of strawberry fruits." Doctoral thesis, Università Politecnica delle Marche, 2018. http://hdl.handle.net/11566/253035.

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Negli ultimi decenni, il consumatore è sempre più attento agli aspetti salutari della dieta, ponendo quindi particolare attenzione alla qualità generale del prodotto, dal punto di vista agronomico e commerciale fino alla qualità sensoriale e nutrizionale. Queste caratteristiche sono molto variabili tra specie differenti di fragola, ma anche all’interno di diverse cultivar appartenenti alla stessa specie. Lo scopo di questo studio triennale è stato quello di valutare e selezionare nuovi genotipi di fragola dall’elevata qualità e valore nutrizionale. I frutti di 51 genotipi di fragola derivanti
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3

Tandhansakul, Montira, and Nuttawat Preechavibul. "A research of consumer attitudes to fruit snacks : A study of Thai consumers’ attitudes toward vacuum fried crispy fruits." Thesis, Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-12566.

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Title: A research of consumer attitudes to fruit snacks : A study of Thai consumers‟ attitudes toward vacuum fried crispy fruits Problem : How should Thai snack companies create their appropriate marketing planning of vacuum fried crispy fruits for satisfying Thai target consumer? Purpose: To investigate the Thai consumers‟ attitudes towards the vacuum fried crispy fruits that will be beneficial in creating the appropriate marketing planning as well as to recommend the potential marketing mix of this product to Thai snack companies Method: The research technique used in this study is mainly ba
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4

Pham, Tam Thi Minh. "Pre-harvest factors affecting fruit quality in sweet oranges with an emphasis on albedo breakdown." Thesis, Curtin University, 2009. http://hdl.handle.net/20.500.11937/2300.

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Albedo breakdown known as creasing, a physiological disorder, due to abnormal separation of cells leading to the formation of irregular fractures in the white tissue (albedo) causing the creases of sweet orange rind. It causes serious economic losses to the sweet orange growers in Australia and in other orange producing areas of the world.Fruit quality, particularly albedo breakdown has been influenced by various factors such as plant water relations, genetic factors, plant nutritional status and plant growth regulators. My research investigated the development of the incidence and the severit
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5

Shalluf, Milad A. "Effect of post-harvest treatment on ripening and quality of tomato fruit using ozone : application of different ozone doses as controlled atmosphere storage for delay ripening and maintaining the quality of tomatoes and effect of ozone on antioxidant and sugar compounds at different stages of tomato fruit ripening." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4448.

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Tomatoes are widely produced and consumed due to their nutritional content and versatility. However, the tomato is a soft fruit liable to damage and flavour deterioration. Hence, the main challenge for the tomato producing industry is to prevent the high loss incurred during harvest, handling and transportation of the crops. The objective of this study was to investigate the overall nutritional implication of controlled storage of tomatoes using ozone on the ripening process and the basic nutritional components of tomatoes. This investigation was also designed to focus on the effect of differe
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6

Morales, Alfaro Julia. "Effect of Rootstock on the Fruit Quality of Mandarins "Clemenules" and "Tango", and Blood Oranges "Tarocco Rosso" and "Moro"." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/165858.

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[ES] La citricultura se enfrenta a escenarios ambientales cambiantes que provocan diferentes estreses bióticos y abióticos que pueden dificultar la producción o afectar a la calidad de la fruta. El patrón sobre el cual se injerta una variedad específica es una importante herramienta para mejorar su adaptabilidad a cada área de cultivo. En la presente Tesis se realiza el estudio del efecto del patrón sobre la calidad físico-química y nutricional de la fruta en variedades de gran interés comercial en la actualidad, mandarinas 'Clemenules' y 'Tango' y naranjas sanguinas 'Tarocco Rosso' y 'Moro'
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7

Breniere, Thomas. "Impact des interactions génotype-pratique sur la teneur et la séquestration des caroténoïdes dans les matrices végétales et sur les effets santé associés : Cas d'étude sur deux espèces de Solanacées : la tomate (Solanum lycopersicum) et la baie de goji (Lycium barbarum)." Electronic Thesis or Diss., Avignon, 2024. http://www.theses.fr/2024AVIG0621.

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Les effets-santé des fruits et légumes sont en partie dus à leur richesse en phytomicroconstituants comme les caroténoïdes. L'objectif de la thèse a été d’analyser au travers d’une approche interdisciplinaire, la relation « conditions de culture - séquestration des caroténoïdes – valeur santé des fruits ». La valeur santé des fruits a été évaluée à différents niveaux : I) la composition en microconstituants des fruits matures ; II) la bioaccessibilité des caroténoïdes dans un modèle de digestion in vitro ; III) le phénotypemétabolique sur un modèle d’obésité induite chez la souris mâle C57BL/6
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8

Tabatabaei, Seyed Jalal. "Yield, quality and nutritional status of tomato (Lycopersicon esculentum) fruits as affected by aerial environment and nutrition distribution in the root zone." Thesis, University of Reading, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250733.

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9

Ergashev, Alisher [Verfasser]. "Analysis of fruit and vegetable supply, demand, diet quality and nutrition in Uzbekistan / Alisher Ergashev." Bonn : Universitäts- und Landesbibliothek Bonn, 2017. http://d-nb.info/1150183055/34.

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10

Fallahi, E., and J. W. Jr Moon. "Effects of Canopy Position on Quality, Photosynthesis and Mineral Nutrition of Four Citrus Varieties." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/215697.

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Quality, leaf gas exchange and mineral content of fruit from internal be canopies were compared with those from extemal canopy positions in 4 citrus varieties: 'Kinnow' mandarin; 'Redblush' grapefruit; 'Valencia' orange; and 'Lisbon' lemon. Fruit weight, total juice per fruit, peel fresh and dry weight, and rind thickness of fruit from internal canopies of all 4 varieties were significantly higher compared with external fruit Mandarin, grapefruit, and orange fruit from external canopies had higher soluble solids and specific gravity. Leaves from internal canopy had higher photosynthesis than t
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11

Hendricks, David Thomas. "Enhancing deciduous fruit and tree quality through the use of various foliar applications." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/71892.

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Thesis (MScAgric)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: Fruit trees are exposed to various factors that can adversely affect the production of quality fruit. These factors can directly affect the fruit and the health of the tree and can be classified according to their biotic or abiotic nature, such as pathogenic attacks and drought stress respectively. One of the cultural practices used commercially to address these stresses is the application of fungicides and bactericides. The fruit production industry is under severe pressure from consumers, retailers and environmentalists,
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12

Fletcher, John Mark. "The effect of nutrition and environment on sensory characteristics and fruit quality in Fragaria x ananassa cv. Elsanta." Thesis, University of Reading, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428119.

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13

Chater, John Matthew. "THE EFFECTS OF FOLIAR NUTRIENT APPLICATIONS ON SPLIT, YIELD, AND INTERNAL FRUIT QUALITY OF 'WONDERFUL' POMEGRANATE (PUNICA GRANATUM L.)." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1510.

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Fruit split is the most important physiological disorder in pomegranate production, causing devastating crop losses worldwide. Foliar nutrient applications have been used experimentally to mitigate pomegranate fruit split but none have been conducted using the industry standard cultivar, Wonderful, and little is known about the effects of foliar nutrient applications on pomegranate. Additionally, investigations into putative health benefits of pomegranate fruit have increased interest in its production but limited evidence exists regarding effects of agricultural practices such as foliar ferti
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14

Al, Fata Nizar. "Conception et exploitation d’un dispositif expérimental instrumenté pour la prévision de la dégradation de la qualité nutritionnelle et de l’inactivation microorganismes dans les fruits et légumes transformés." Thesis, Avignon, 2017. http://www.theses.fr/2017AVIG0265/document.

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Au cours des procédés d’appertisation, qui impliquent des traitements thermiques généralement pratiqués à hautes températures, la qualité nutritionnelle des produits alimentaires est souvent altérée. En effet, certaines vitamines, telles que la vitamine C, sont très thermolabiles.L’objectif du projet PREDINUT était de proposer un outil d’aide à la décision afin de prévoir la quantité de vitamine C (marqueur de qualité nutritionnelle) détruite dans des conditions données de durée/température, afin de pouvoir optimiser les procédés.Un thermorésistomètre Mastia®, a été utilisé pour établir des co
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15

Gultekin, Necmiye Busra. "Effect Of High Hydrostatic Pressure Treatment On Some Quality Properties, Squeezing Pressure Effect And Shelf Life Of Pomegranate (punica Granatum) Juice Against Thermal Treatment." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614816/index.pdf.

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16

Cherif, Sarra. "Variation de la qualité des dattes en fonction des conditions de conservation et des traitements post-récolte Effet de la température et de la durée de conservation sur la qualité des dattes ‘Deglet Nour’ Does hydratation of ‘Deglet Nour’ date palm fruits after harvest improve their organoleptic and nutritional characteristics? European Food Research and Technology." Thesis, Avignon, 2021. http://www.theses.fr/2021AVIG0726.

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La production de dattes ne cesse d’augmenter d’une saison à une autre ce qui engendre des pertes essentiellement lors des étapes de manutention et de commercialisation. De plus, l’étape de manutention post-récolte joue un rôle important dans le maintien de la qualité des dattes. Dans ce cadre et afin de préserver les qualités organoleptique et nutritionnelle des dattes après récolte tout en améliorant leur valeur commerciale, des essais de conservation et de traitement post-récolte ont été mis en place. L’effet de la conservation des dattes en fonction de la température, du temps, de l’utilisa
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17

Macedo, Charle Kramer Borges de. "Qualidade de maçãs Gala‟ e Fuji‟ em função da nutrição e das condições climáticas no Sul do Brasil." Universidade do Estado de Santa Catarina, 2014. http://tede.udesc.br/handle/handle/1199.

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Made available in DSpace on 2016-12-08T16:44:48Z (GMT). No. of bitstreams: 1 PGPV14MA151.pdf: 789098 bytes, checksum: fa9c719ade42e2e7fcc9967b14835223 (MD5) Previous issue date: 2014-07-31<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The diferences in climatic conditions and the appropriate nutritional management are crucial for productivity and fruit quality. Southern Brazil is the main apple production region, with the States of Rio Grande do Sul (RS) and Santa Catarina (SC) the major producers. The aim of this research was to evaluate the quality of apple fruits grown
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18

Brown, Gordon Stuart, of Western Sydney Hawkesbury University, Faculty of Agriculture and Horticulture, and School of Horticulture. "The effects of copper nutrition on fruit cracking and quality in cherry (Prunus avium L.) and other fruit crops." 1997. http://handle.uws.edu.au:8081/1959.7/23894.

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A positive relationship between foliar copper levels and fruit firmness in apricots was established in the late 1980’s. A review of the literature and discussions with both national and international researchers led to research upon the influence of foliar applied copper on fruit quality. Studies were initiated using cherries, which in addition to being a soft fruit also suffer from rain induced fruit cracking. Results of initial studies suggested that the treatment should be applied to other fruit crops to determine if similar responses occur in these. To this end two further experiments were
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19

Brown, Gordon S. "The effects of copper nutrition on fruit cracking and quality in cherry (Prunus avium L.) and other fruit crops." Thesis, 1997. http://handle.uws.edu.au:8081/1959.7/23894.

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A positive relationship between foliar copper levels and fruit firmness in apricots was established in the late 1980’s. A review of the literature and discussions with both national and international researchers led to research upon the influence of foliar applied copper on fruit quality. Studies were initiated using cherries, which in addition to being a soft fruit also suffer from rain induced fruit cracking. Results of initial studies suggested that the treatment should be applied to other fruit crops to determine if similar responses occur in these. To this end two further experiments were
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20

Bally, Ian S. E. "The effect of preharvest nutrition and crop load on fruit quality and postharvest disease in mango (mangifera indica l.)." Thesis, 2007. http://era.daf.qld.gov.au/id/eprint/7956/.

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The aim of this thesis was to investigate how preharvest calcium (Ca) and nitrogen (N) nutrition, and low crop load during fruit development affect fruit quality and postharvest disease of Keitt mangoes (Mangifera indica L). Calcium, N and crop load were chosen because previous research and Gower reports implicate them as major factors in internal disorders, poor colour development, and postharvest disease in mangoes grown in the Mareeba district of Queensland. The symptoms and incidence of the internal fruit disorders seen in Keitt mangoes growing in Queensland were investigated to determine
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21

Froneman, Izak J. "Horticultural manipulation techniques to improve yield, fruit size and quality in 'Wai Chee' litchi (Litchi chinensis Sonn.)." Thesis, 2010. http://hdl.handle.net/10413/7891.

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In South Africa, a shortage of litchi cultivars to expand the very short harvesting period has seriously threatened the viability of the local export orientated Litchi Industry. Only two cultivars have dominated commercial plantings for more than a century, namely ‘HLH Mauritius’ and ‘McLean’s Red’. The marketing period of litchis from South Africa coincides with large export volumes from competitor countries such as Madagascar, resulting in lower returns for local growers. To address this situation, the late season cultivar ‘Wai Chee’ was imported amongst others from Australia. ‘Wai Chee’ is
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22

Hamidi, Maryam. "Dietary Factors and Bone Health in Postmenopausal Women." Thesis, 2012. http://hdl.handle.net/1807/32728.

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Introduction: About 80% of those affected by osteoporosis are postmenopausal women. Therefore, identifying beneficial or harmful dietary factors for postmenopausal osteoporosis may have a significant public health impact. Objectives: The overall objective of this thesis was to examine the relations between various dietary factors and bone health in postmenopausal women aged ≥ 45 years using different analytical approaches. Methods: First, the associations between fruit and vegetables (F&V) intake and indicators of bone health were assessed using a systematic review approach. Electronic datab
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23

KESARWANI, AMIT, and 卡斯瓦. "An Assessment of Nutritional Value,Sensory Properties and Some Quality Indices of Organically and Conventionally Produced Fruits, Vegetables, and Cereal Grains under Sub-Tropical Condition: A Case Study of Taiwan Agroecosystem." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/9txzg7.

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博士<br>國立中興大學<br>農藝學系所<br>100<br>Researches of this study aimed to compare the nutritional, sensory qualities between organic and conventional agricultural products in subtropical Taiwan. Few studies have investigated the influences of organic and conventional production systems on commercial food products based on sub-tropical condition. In this study organic and conventional carrots (cv. Xiangyang No.2), papaya (cv. Tainung No. 2), pineapple (cv. Tainung No. 17) and two Japonica rice cultivars (cv Kaohsiung No. 139 and Taikeng No.16) were selected for the various comparative studies of maturi
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24

Al-Masri, Hiba. "The link between self-production of food and diet quality in adults living in rural Lebanon." Thèse, 2016. http://hdl.handle.net/1866/18853.

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La transition nutritionnelle et l’insécurité alimentaire sont parmi les facteurs externes majeurs diminuant la qualité de l’alimentation. Les effets du déclin de celle-ci se résument par l’augmentation de la prévalence des maladies chroniques et des carences nutritionnelles. Afin de combattre ces problèmes, plusieurs études ont trouvé que la qualité de l’alimentation a été améliorée par l’autoproduction d’aliments (autorécolte*). Cette étude vise à identifier si un lien existe entre la qualité de l’alimentation et l’autorécolte d’aliments végétaux dans le contexte rural libanais, à partir de 7
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