摘要
分别采用酶解和超声辅助提取白芦笋和绿芦笋中的膳食纤维和酚类物质,分析可溶性膳食纤维和不可溶性膳食纤维的提取率及理化指标,通过比色法测定芦笋总酚和总黄酮含量,并比较两种芦笋中的酚类物质和可溶性膳食纤维抗氧化能力(DPPH、ABTS自由基清除活性和还原力)。结果发现,白芦笋和绿芦笋均富含可溶性膳食纤维(26.67±1.2, 30.46±0.8 g/100 g)和不可溶性膳食纤维(11.6±0.6, 22.73±0.98 g/100 g),且两种芦笋中可溶性膳食纤维的含量均高于不可溶性膳食纤维的含量。此外,绿芦笋中两种膳食纤维和酚类物质(6.76±0.21 GAE mg/g)的含量均高于白芦笋中膳食纤维和酚类物质(2.89±0.16 GAE mg/g)含量,且绿芦笋可溶性膳食纤维和酚类物质的抗氧化活性均显著高于白芦笋。以上结果为芦笋,尤其是绿芦笋的深度开发利用提供科学依据与理论支撑。
Dietary fiber and phenolic compounds in white and green asparagus were prepared with different enzymes and ultrasonic wave, respectively. The extraction rate and physicochemical indexes of asparagus soluble and insoluble dietary fibers were both analyzed. Colorimetric method was used to determine total phenols, total flavonoids in the phenolic extract of asparagus, as well as the antioxidant activities(DPPH, ABTS free radicals scavenging capacities and reducing power) of phenolic extract and soluble dietary fiber. The results showed that there were abundant of soluble(26.67±1.2, 30.46±0.8 g/100 g) and insoluble(11.6±0.6, 22.73±0.98 g/100 g) dietary fibers in white and green asparagus, and the content of soluble dietary fiber were significantly higher than that of insoluble dietary fiber in both asparagus. Moreover, the contents of soluble and insoluble dietary fibers and phenolic compounds(6.76±0.21 GAE mg/g) in green asparagus were higher than those of white asparagus(2.89±0.16 GAE mg/g). And the antioxidant activities of soluble dietary fiber and phenolic compounds in green asparagus were also higher than those of white asparagus. The above results provided scientific basis and theoretical support for the deep development and utilization of asparagus, especially for the green asparagus.
作者
尹培培
刘昌衡
赵鲁豫
刘永
张绵松
贾爱荣
YIN Peipei;LIU Changheng;ZHAO Luyu;LIU Yong;ZHANG Miansong;JIA Airong(Biology Institute, Qilu University of Technology (Shandong Academy of Sciences),Jinan 250103;Heze Juxinyuan Food Co., Ltd.,Heze 274400)
出处
《食品工业》
CAS
北大核心
2019年第7期190-194,共5页
The Food Industry
基金
国家重点研发计划资助(National Key R & D Program of China)(2018YFC0311200)
山东省重点研发计划(医用食品专项计划)(2017YYSP020)
关键词
芦笋
可溶性膳食纤维
不可溶性膳食纤维
酚类物质
抗氧化
asparagus
soluble dietary fiber
insoluble dietary fiber
phenolic compounds
antioxidant activity
