Modification of deoiled cumin dietary fiber with laccase and cellulase under high hydrostatic pressure
Modification of deoiled cumin dietary fiber with laccase and cellulase under high hydrostatic pressure
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DOI：
10.1016/j.carbpol.2015.09.030
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发表时间：
2016-01-20
影响因子：
11.2
通讯作者：
Mu, Taihua
中科院分区：
文献类型：
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作者：
Ma, Mengmei;Mu, Taihua
研究了高静水压（HHP）和酶（漆酶和纤维素酶）处理对脱油孜然膳食纤维（DF）结构、理化性质、功能性质和抗氧化活性的影响。HHP-酶处理提高了可溶性膳食纤维（SDF）（30.37g/100 g）、单糖（葡萄糖除外）、糖醛酸和总多酚的含量。HHP-酶处理改变了DF的蜂窝结构，并产生新的多糖。经HHP-酶改性后的DF的保水力（10.02 g/g）、吸水膨胀力（11.19 mL/g）、脂肪和葡萄糖吸收量（10.44 g/g、22.18-63.54 mmol/g）、α-淀粉酶活性抑制率（37.95%）和胆汁酸阻滞指数（48.85-52.58%）均有所提高。DF的抗氧化活性主要与总多酚含量相关（R = 0.8742）。因此，经HHP-酶处理的脱脂孜然膳食纤维可作为一种富含纤维的功能性食品成分。(C)2015由Elsevier Ltd.出版
In this study, we evaluated the effects of high hydrostatic pressure (HHP) and enzyme (laccase and cellulase) treatment on the structural, physicochemical, and functional properties and antioxidant activity of deoiled cumin dietary fiber (DF). HHP-enzyme treatment increased the contents of soluble dietary fiber (SDF) (30.37g/100 g), monosaccharides (except for glucose), uronic acids, and total polyphenol. HHP-enzyme treatment altered the honey-comb structure of DF and generated new polysaccharides. DF modified by HHP-enzyme treatment exhibited improved water retention capacity (10.02 g/g), water swelling capacity (11.19 mL/g), fat and glucose absorption capacities (10.44 g/g, 22.18-63.54 mmol/g), a-amylase activity inhibition ration (37.95%), and bile acid retardation index (48.85-52.58%). The antioxidant activity of DF was mainly correlated to total polyphenol content (R = 0.8742). Therefore, DF modified by HHP-enzyme treatment from deoiled cumin could be used as a fiber-rich ingredient in functional foods. (C) 2015 Published by Elsevier Ltd.