Ali Muhammad Waqas, Shahzad Raheem, Bilal Saqib, Adhikari Bishnu, Kim Il-Doo, Lee Jeong-Dong, Lee In-Jung, Kim Byung Oh, Shin Dong-Hyun
1Plant Resource Development Laboratory, School of Applied Biosciences, Kyungpook National University, Daegu, 41566 Korea.
2International Institute of Agriculture Research and Development, Kyungpook National University, Daegu, 41566 South Korea.
J Food Sci Technol. 2018 Aug;55(8):2871-2880. doi: 10.1007/s13197-018-3202-2. Epub 2018 Jun 19.
This study was carried out to determine the effect of different concentrations of (0, 1, 3, 5, and 7%) on the antioxidant potential and biochemical constituents of traditional Korean fermented soybean, (CKJ). The antioxidant capacity was studied using the reducing power, 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2-azinobis (3-ethyl-benzothiazoline-6-sulfonic acid) (ABTS) assays and the total phenolic contents (TPC) were measured using the Folin-Ciocalteu method. CKJ prepared using 1% revealed the highest TPC (5.99 mg/g), total amino acids (7.43 mg/g), DPPH (94.24%), and ABTS (86.03%) radical-scavenging activity and had the highest value of palmitic acid (11.65%), stearic acid (2.87%), and linolenic acid (11.76%). Results showed that the calcium, iron, sodium, and zinc contents increased in the CKJ prepared using 7% from 1481.38 to 1667.32, 41.38 to 317.00, 48.01 to 310.07, and 32.82 to 37.18 mg/kg respectively. In conclusion, the present results indicate that the fermentation of soybean with (KCTC 13241) significantly augments the nutritional and antioxidant potential of CKJ and it can be recommended as a health-promoting food source.
本研究旨在确定不同浓度的（0%、1%、3%、5%和7%）对韩国传统发酵大豆（CKJ）抗氧化潜力和生化成分的影响。通过还原力、2,2-二苯基-1-苦基肼（DPPH）和2,2-联氮-双-（3-乙基苯并噻唑啉-6-磺酸）（ABTS）测定法研究抗氧化能力，并使用福林-西奥尔特法测定总酚含量（TPC）。使用1%制备的CKJ显示出最高的TPC（5.99毫克/克）、总氨基酸（7.43毫克/克）、DPPH（94.24%）和ABTS（86.03%）自由基清除活性，并且棕榈酸（11.65%）、硬脂酸（2.87%）和亚麻酸（11.76%）的值最高。结果表明，使用7%制备的CKJ中钙、铁、钠和锌含量分别从1481.38增加到1667.32、41.38增加到317.00、48.01增加到310.07和32.82增加到37.18毫克/千克。总之，目前的结果表明，用（KCTC 13241）发酵大豆显著增强了CKJ的营养和抗氧化潜力，它可以作为一种促进健康的食物来源被推荐。
