Production of Nutraceutical Probiotic Whey–Based Beverage Fortified with Annona squamosal L (Custard Apple ) Fruit إنتاج مشروب شرش حیوى مغذى مدعم بفاکهة (ثمرة القشدة) Annona squamosal L

Abstract

Probiotic whey-based custard apple beverages (P.C.A.B.) were prepared with different combinations of whey and custard apple pulp juice , PJ (75:25, 50:50 and 25:75 , weight :weight) and inoculated with1% probiotic bacteria Lactobacillus casei. Beverages were evaluated for physic-chemical, microbiological and sensory properties, during cold storage. Total solids and the apparent viscosity were increased in (P.C.A.B.) treatments as the level of P.J. increased, whereas values of titratable acidity (T.A) were decreased, compared to control treatment. The pH values of all treatments behaved reverse trend to T.A, through the storage period.Total antioxidant compounds, vitamins A & C and minerals were found higher in fresh beverage contained 25% P.J. than control one. The rate of increase (%) in the antioxidants, vitamins A & C were 9.09, 135.30, and 173.30, respectively. Minerals were increased also in (P.C.A.B.) but in a variable ratios. Counts of probiotic lactobacilli were gradually decreased as the storage period increased and as the level of P.J. increased. The probiotic strain was still viable, in all treatments, with counts more than 10 6 cfu/ml , while coliform group & spore-forming bacteria were absent in all treatments, during storage. Control treatment was less acceptable, at the 21 days of storage as a result of growing yeast & molds with counts reached to 30×10 2 cfu/ml.The beverage prepared from 75% whey : 25% P.J. was found superior organolepticaly than the other ones, along the storage period. It has clean acid flavor and long keeping quality up to 40 days of storage .

Innovative applications of whey protein for sustainable dairy industry: Environmental and technological perspectives—A comprehensive review

“…Whey‐based beverages (WBBs) can be made using either sweet CW or milk enriched with WPC or WPI (Seyhan et al., 2015). Furthermore, WPCs have a unique solubility that makes them suitable for use in a variety of beverages, such as fruit juices, soft drinks, wine, and aperitifs (2020 Guimarães et al., 2019; El‐Aidie, Hatem, et al., 2020). WBBs are considered refreshing, light, and a genuine thirst quencher (Panghal et al., 2018).…”

“…For example, a study by Dhadge et al (2019) found that incorporating 5% WPC solids into cow milk for khoa production improved its sensory characteristics. Several studies found that WPs, such as WPC, WPI, and whey permeate, are rich in bioactive compounds that can improve the texture, flavor, and overall quality of fermented milk beverages while also increasing their nutritional value, shelf life, and reducing waste (Janiaski et al, 2016;El-Aidie, Hatem, et al, 2020;Sohrabi et al, 2016). The application of fresh AW represents an accessible and sustainable approach to producing functional probiotic products that can benefit small dairy factories (Elgarhi et al, 2020;Skryplonek & Jasińska, 2015).…”