{"title":"Enhancement of color stability in strawberry nectar during storage","authors":"Reda A. Aamer , Wafaa A. Amin , Ramadan S. Attia","doi":"10.1016/j.aoas.2021.08.003","DOIUrl":null,"url":null,"abstract":"<div><p>Strawberry anthocyanins often undergo chemical degradation during storage, which leads to color fading and bioactivity loss. These changes are increased by ascorbic acid, which accelerates anthocyanin degradation. The present study investigated the effect of citric acid as an alternative to ascorbic acid to adjust strawberry nectar pH. Several additions were also used as co-pigment sources to enhance color stability during a five-month dark storage period at ambient temperatures. The results showed that citric acid increased the stability of total and monomeric anthocyanin and reduced the formation of polymeric color. The fortification of the strawberry nectar with 0.2% green tea extract, 3% hot rosella extract, and 0.5% low-methoxyl pectin in the presence of citric acid led to enhance strawberry nectar color, high stability, and reduce anthocyanin degradation.</p></div>","PeriodicalId":54198,"journal":{"name":"Annals of Agricultural Science","volume":null,"pages":null},"PeriodicalIF":3.5000,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S057017832100035X/pdfft?md5=18de97b2010a55380366e26942cbaffb&pid=1-s2.0-S057017832100035X-main.pdf","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of Agricultural Science","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S057017832100035X","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 6
Abstract
Strawberry anthocyanins often undergo chemical degradation during storage, which leads to color fading and bioactivity loss. These changes are increased by ascorbic acid, which accelerates anthocyanin degradation. The present study investigated the effect of citric acid as an alternative to ascorbic acid to adjust strawberry nectar pH. Several additions were also used as co-pigment sources to enhance color stability during a five-month dark storage period at ambient temperatures. The results showed that citric acid increased the stability of total and monomeric anthocyanin and reduced the formation of polymeric color. The fortification of the strawberry nectar with 0.2% green tea extract, 3% hot rosella extract, and 0.5% low-methoxyl pectin in the presence of citric acid led to enhance strawberry nectar color, high stability, and reduce anthocyanin degradation.
期刊介绍：
Annals of Agricultural Sciences (AOAS) is the official journal of Faculty of Agriculture, Ain Shams University. AOAS is an open access peer-reviewed journal publishing original research articles and review articles on experimental and modelling research at laboratory, field, farm, landscape, and industrial levels. AOAS aims to maximize the quality of the agricultural sector across the globe with emphasis on the Arabian countries by focusing on publishing the high-quality applicable researches, in addition to the new methods and frontiers leading to maximizing the quality and quantity of both plant and animal yield and final products.
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