木槿
菊粉
喷雾干燥
益生元
化学
食品科学
多酚
响应面法
色谱法
抗氧化剂
生物化学
作者
Caroline Maria Calliari,Marianne Ayumi Shirai,Alessandro Alberto Casazza,Margherita Pettinato,Patrizia Perego
标识
DOI:10.1080/14786419.2023.2244133
摘要
AbstractDue to the high content of phenolics and anthocyanins of Hibiscus sabdariffa L. tea and the sensibility of these bioactive compounds, this work aimed to optimize the obtention of microcapsules by spray-drying, using inulin as a carrier agent. Using a Box-Behnken Design, the effects of inlet temperature (130, 150, and 170 °C), feed flow rate (5, 10, and 15 mL min−1), and inulin concentration (5, 10, and 15 g L−1) were evaluated. It was possible to obtain pale-rose, slightly sweet instant powders with good total polyphenol content (1.12 mgGAE g−1) and anthocyanins encapsulation efficiency (32.3–60.6%), besides moisture (4.61–17.79%) and water activity (0.221–0.501), indicating physico-chemical and microbiological stability of the microcapsules. A simultaneous optimization with the desirability function was performed to maximize all the response variables analyzed, and the optimum conditions of 5 g L−1 of inulin, inlet temperature of 170 °C, and feed flow rate of 83 mL min−1 were found.Keywords: Response surface modellingdesirability methodpolyphenolsanthocyaninsprocess optimizationroselleHibiscus sabdariffa L Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe author(s) reported there is no funding associated with the work featured in this article.
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