School Of Basic And Applied Sciences

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    Encapsulation for efficient spray drying of fruit juices with bioactive retention
    (Springer, 2022-06-17T00:00:00) Srivastava, Soma; Bansal, Mrigya; Jain, Dilip; Srivastava, Yashi
    Higher moisture content and inefficient post-harvest handling result in huge losses and scanty availability of the fruits. Spray drying is one such technique to handle the problem of post-harvest losses as powder production not only cuts the storage and transportation cost but also provides higher shelf stability. This review provides a detailed description of the process of spray drying and the effect of each parameter on powder characteristics. It also summarizes that addition of different wall materials resulted in the production of high-quality fruit juice powders.There are two major approaches material based i.e., encapsulation and process-based which aim to improve the economic value of spray drying by controlling the problems of stickiness, hygroscopicity, and thermal degradation of heat-sensitive compounds. Stickiness is majorly due to the low glass transition temperature of fruit juices (sugars and acids) which is elevated with the addition of encapsulating agents. Control over operational parameters is essential to deliver fruit powders within acceptable quantity and quality, both in terms of organoleptic and nutritional parameters. Various studies revealed that encapsulation act as protective shield for bioactive and probiotics retention. Maltodextrin (Dextrose equivalence 10�20) is reported as the most efficient drying aid. Prebiotics like nutriose and skimmed milk powder can also be used as drying aids. Most suitable conditions for spray drying of fruit juices like pomegranate, ber, and jamun are 25% maltodextrin at 124��C, 8�10% maltodextrin at 160�190��C, and 10% maltodextrin at 185��C, respectively. � 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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    Encapsulation for efficient spray drying of fruit juices with bioactive retention
    (Springer, 2022-06-17T00:00:00) Srivastava, Soma; Bansal, Mrigya; Jain, Dilip; Srivastava, Yashi
    Higher moisture content and inefficient post-harvest handling result in huge losses and scanty availability of the fruits. Spray drying is one such technique to handle the problem of post-harvest losses as powder production not only cuts the storage and transportation cost but also provides higher shelf stability. This review provides a detailed description of the process of spray drying and the effect of each parameter on powder characteristics. It also summarizes that addition of different wall materials resulted in the production of high-quality fruit juice powders.There are two major approaches material based i.e., encapsulation and process-based which aim to improve the economic value of spray drying by controlling the problems of stickiness, hygroscopicity, and thermal degradation of heat-sensitive compounds. Stickiness is majorly due to the low glass transition temperature of fruit juices (sugars and acids) which is elevated with the addition of encapsulating agents. Control over operational parameters is essential to deliver fruit powders within acceptable quantity and quality, both in terms of organoleptic and nutritional parameters. Various studies revealed that encapsulation act as protective shield for bioactive and probiotics retention. Maltodextrin (Dextrose equivalence 10�20) is reported as the most efficient drying aid. Prebiotics like nutriose and skimmed milk powder can also be used as drying aids. Most suitable conditions for spray drying of fruit juices like pomegranate, ber, and jamun are 25% maltodextrin at 124��C, 8�10% maltodextrin at 160�190��C, and 10% maltodextrin at 185��C, respectively. � 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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    Composition, bioactive compounds and antioxidant activity of common Indian fruits and vegetables
    (Springer India, 2016) Singh,Jatinder Pal; Kaur, Amritpal; Shevkani, Khetan; Singh, Narpinder
    The present work was undertaken to evaluate the chemical composition (proximate, minerals and dietary fibre), colour parameters, antioxidant activity and polyphenol profiles of different fruits (pomegranate, kinnow, mango, banana, jambolan, grapes and sapodilla) and vegetables (beetroot, brinjal, orange carrot, bitter gourd, mentha and spinach). The amount of insoluble dietary fibre was higher than soluble dietary fibre for all fruits and vegetables. Vegetables showed superior mineral composition (higher amounts of K, Ca and Fe) as compared to fruits. Total phenolic content (TPC) and antioxidant activity (ABTS and DPPH) ranged from 354.9 to 1639.7?mg?GAE/100?g, 2.6 to 5.5 and 3.0 to 6.3?mM?TE/g, respectively for different fruits, while it ranged from 179.3 to 1028.6?mg?GAE/100?g, 2.1 to 4.7 and 2.0 to 5.0?mM?TE/g, respectively for different vegetables. Gallic acid, protocatechuic acid, catechin, caffeic acid, ferulic acid, sinapic acid, quercetin, resveratrol and kaempferol were detected and quantified in different fruits and vegetables. The results highlighted that fruit peels could be used as valuable sources of minerals and polyphenols having high antioxidant activity. ? 2016, Association of Food Scientists & Technologists (India).