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Total Phenolics Contents, Total Flavonoids Contents and Antioxidant Capacities of Commercially Available Korean Domestic and Foreign Intermediate Food Materials

机译:市售国内外国内外中间食品原料的总酚类含量,总类黄酮含量和抗氧化能力

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Commercial Korean domestic and foreign intermediate food materials (IFMs) of blueberry, Aronia, oat, sweet pumpkin, and ginger were purchased to compare their functional properties, including total phenolic content (TPC), total flavonoid content (TFC), total anthocyanin content (TAC), and antioxidant capacity. Each IFM was extracted using 80% (v/v) methanol for the analyses. The TPC (mg gallic acid equivalent/100 g dried sample) and TFC (mg catechin equivalent/100 g dried sample) levels in domestic blueberry (TPC, 2,916 ± 200; TFC, 1,327 ± 31) and sweet pumpkin (TPC, 476 ± 20; TFC, 23 ± 32) IFMs were significantly higher than those in the foreign IFMs. In the case of TAC (mg cyanidin-3-glucoside/100 g dried sample), the level in domestic blueberry IFM (949 ± 57) was significantly higher than that in the foreign product. Among the domestic IFMs, the antioxidant capacities (mg vitamin C equivalent/100 g dried sample) of blueberry, sweet pumpkin, and ginger were 7,057 ± 321, 311 ± 8, and 3,321± 109, respectively, being significantly higher than those of their foreign counterparts, based on the ABTS radical scavenging assay. In the DPPH radical scavenging assay, foreign Aronia (12,667 ± 437) and ginger (2,067 ± 99) IFMs showed significantlyhigher levels of free radical scavenging activity than did the domestic IFMs. These results provide basic information regarding the functional properties of Korean domestic IFMs, compared with their foreign counterparts.
机译:购买了韩国国内外蓝莓,阿罗尼亚,燕麦,甜南瓜和生姜的中间食品原料(IFM),以比较其功能特性,包括总酚含量(TPC),总黄酮含量(TFC),总花色苷含量( TAC)和抗氧化能力。使用80%(v / v)甲醇提取每个IFM进行分析。国产蓝莓(TPC,2,916±200; TFC,1,327±31)和甜南瓜(TPC,476±4)中的TPC(没食子酸当量/ 100 g干燥样品)和TFC(儿茶素当量/ 100 g干燥样品)水平20; TFC,23±32)IFM明显高于国外IFM。对于TAC(氰基-3-毫克葡萄糖苷/ 100 g干样品),国产蓝莓IFM(949±57)中的含量显着高于国外产品。在家用IFM中,蓝莓,甜南瓜和生姜的抗氧化能力(毫克维生素C当量/ 100 g干样品)分别为7,057±321、311±8和3,321±109,明显高于它们的抗氧化能力。国外同行,基于ABTS自由基清除法。在DPPH自由基清除试验中,外来Aronia(12,667±437)和生姜(2,067±99)IFM的自由基清除活性水平明显高于国内IFM。这些结果提供了有关韩国国内IFM与国外同类产品相比功能特性的基本信息。

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