EVALUATION OF ANTHOCYANINS AND OTHER PHENOLIC COMPOUNDS EXTRACTION FROM BLUEBERRY PROCESSING WASTE WITH ACIDIFIED WATER

Q4 Agricultural and Biological Sciences Boletim Centro de Pesquisa de Processamento de Alimentos Pub Date : 2017-10-22 DOI:10.5380/CEP.V35I1.55935

Ivanor Zardo, M. Brando, L. Marczak, C. Noreña

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Abstract

Anthocyanins are natural pigments andthey are responsible for the blue-to-red coloration of flowers, fruits and leaves. These phenolic compounds are also known to be beneficial to human health. Due to their instability under some factors liketemperature, light and pH conditions, their applicationsin the food industry need further study. The aim of this study was to evaluate and improve methods for the extractionofanthocyaninsand other phenolic compoundsfrom blueberry pomace generated bythe juice production process, getting an extract free of organic solvent.The extractions were realized with acidifieddistilled water (1% citric acid) as a solvent, varying theextraction time and temperature. Maximum yields of anthocyanins were obtainedat 80 °C for 5 minutes, resulting in a total of 1,944.07 ± 46.7 mg of monomeric anthocyanins (cyanidin-3-glucoside)per 100 g of dry pomace. The phenolic compounds showed a good correlation with antioxidant activity, and higher yields were obtained at high temperatures and for longer extraction times

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酸化水法提取蓝莓加工废液中花青素及其他酚类化合物的研究

花青素是一种天然色素，它们使花朵、水果和叶子呈现出蓝到红的颜色。这些酚类化合物也被认为对人体健康有益。由于它们在温度、光照和pH等条件下不稳定，在食品工业中的应用有待进一步研究。本研究的目的是评价和改进从蓝莓果渣中提取花青素和其他酚类化合物的方法，得到无有机溶剂的蓝莓果渣提取物。以酸化蒸馏水(1%柠檬酸)为溶剂，不同的提取时间和温度进行提取。花青素在80°C下发酵5分钟得到最大产率，每100 g干果渣中单体花青素(花青素-3-葡萄糖苷)的产率为1,944.07±46.7 mg。酚类化合物与抗氧化活性有良好的相关性，在高温条件下，提取时间越长，得率越高

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Boletim Centro de Pesquisa de Processamento de Alimentos Agricultural and Biological Sciences-Animal Science and Zoology

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期刊介绍： The CEPPA Bulletin publishes unpublished technical-scientific papers (unpublished or submitted to another journal), resulting from research and bibliographic reviews in the area of science, technology, food engineering and the like. Originals in English (priority) are accepted, which comply with the normative provisions of the newspaper. The opinions expressed in articles are the sole responsibility of the authors. The Bulletin reserves the right to adapt the originals to maintain the homogeneity of the publication, always respecting the author''s style. The CEPPA Bulletin is indexed in Scopus, Food Science and Technology Abstract (FSTA), CAB Abstract, Chemical Abstract (CA), Latin American and Caribbean Literature in Health Sciences (LILACS) databases and Periodical Literature in Agricultural Sciences (PERI).