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Potential bioactive ingredient from elderberry fruit: Process optimization for a maximum phenolic recovery, physicochemical characterization, and bioaccesibility
Journal of Berry Research ( IF 1.7 ) Pub Date : 2020-11-27 , DOI: 10.3233/jbr-200629
Milagros Lucía Gomez Mattson 1 , Rocío Corfield 2 , Leonardo Bajda 1 , Oscar Edgardo Pérez 3 , Carolina Schebor 2 , Daniela Salvatori 1
Affiliation  

BACKGROUND:Dark-skin berries constitute a polyphenol-rich source of interest for the development of functional ingredients. OBJECTIVE:To develop an elderberry powder, addressing technological aspects for maximum bioactive recovery, including physical quality and bioaccesibility of the antioxidant compounds. METHODS:An optimization of the combined process of enzyme-assisted extraction and freeze-drying was undertaken. Polyphenols and anthocyanins were quantified by spectrophotometric and HPLC-DAD analysis along processing stages and an in vitro digestion model was used to study the antioxidant compound activity through gastrointestinal tract and after transepithelial transport across a Caco-2 cell monolayer. Powder physical properties were also evaluated. RESULTS:The best extraction conditions were 45°C and 160 ppm enzyme. 10% maltodextrin was the minimum carrier concentration needed to get a freeze-dried powder with good physical properties and maximum bioactive content. The phenolic compounds identified in fruits (mainly cyanidin-based anthocyanins, quercetin-3-rutinoside, catechin and, in smaller amounts, gallic and chlorogenic acids) were also present in the optimum extract and the powder. High bioaccesibility of bioactive compounds and antioxidant activity were obtained after in vitro digestion and transepithelial transport. CONCLUSION:The designed elderberry powder showed great potential as functional ingredient to be used in berry juice-based beverages or other products formulated with fruit powders.

中文翻译:

来自接骨木浆果的潜在生物活性成分:工艺优化,可最大程度地提高酚的回收率,理化特性和生物相容性

背景:黑皮肤浆果构成开发功能成分所需要的富含多酚的物质。目的:开发一种接骨木果粉,解决最大生物活性回收的技术问题,包括物理质量和抗氧化剂化合物的生物相容性。方法:对酶辅助提取与冷冻干燥相结合的工艺进行了优化。通过分光光度法和HPLC-DAD分析在加工阶段对多酚和花色苷进行定量,并使用体外消化模型研究了通过胃肠道以及经上皮运输穿过Caco-2细胞单层后的抗氧化剂化合物活性。还评估了粉末的物理性能。结果:最佳提取条件为45°C和160 ppm酶。10%的麦芽糖糊精是获得具有良好物理性能和最大生物活性含量的冻干粉末所需的最低载体浓度。最佳提取物和粉末中也存在水果中鉴定出的酚类化合物(主要是花青素类花色苷,槲皮素-3-芸苔苷,儿茶素,以及少量的没食子酸和绿原酸)。经过体外消化和上皮运输后,获得了高生物活性化合物的生物相容性和抗氧化活性。结论:设计的接骨木浆果粉具有巨大的潜力,可作为功能性成分用于基于浆果汁的饮料或其他由果粉制成的产品中。最佳提取物和粉末中也存在水果中鉴定出的酚类化合物(主要是花青素类花色苷,槲皮素-3-芸苔苷,儿茶素,以及少量的没食子酸和绿原酸)。经过体外消化和上皮运输后,获得了高生物活性化合物的生物相容性和抗氧化活性。结论:设计的接骨木浆果粉具有巨大的潜力,可作为功能性成分用于基于浆果汁的饮料或其他由果粉制成的产品中。最佳提取物和粉末中也存在水果中鉴定出的酚类化合物(主要是花青素类花色苷,槲皮素-3-芸苔苷,儿茶素,以及少量的没食子酸和绿原酸)。经过体外消化和上皮运输后,获得了高生物活性化合物的生物相容性和抗氧化活性。结论:设计的接骨木浆果粉具有巨大的潜力,可作为功能性成分用于基于浆果汁的饮料或其他由果粉制成的产品中。经过体外消化和上皮运输后,获得了高生物活性化合物的生物相容性和抗氧化活性。结论:设计的接骨木浆果粉具有巨大的潜力,可作为功能性成分用于基于浆果汁的饮料或其他由果粉制成的产品中。经过体外消化和上皮运输后,获得了高生物活性化合物的生物相容性和抗氧化活性。结论:设计的接骨木浆果粉具有巨大的潜力,可作为功能性成分用于基于浆果汁的饮料或其他由果粉制成的产品中。
更新日期:2020-11-27
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