現(xiàn)代食品科技 Modern Food Science and Technology 2022, Vol.38, No.2
87
桑葚、百香果、柚子及火龍果復(fù)合果汁協(xié)同抑制
α-葡萄糖苷酶的作用及機(jī)制
董宇豪,陳春*
,扶雄
(華南理工大學(xué)食品科學(xué)與工程學(xué)院,廣東廣州 510640)
摘要:為探究果汁在復(fù)配體系中對(duì)于生物活性的協(xié)同增效作用,選擇具有豐富天然活性物質(zhì)的桑葚、百香果、柚子、火龍果為
原材料,以多酚含量等比例混合制備得到復(fù)合果汁,評(píng)價(jià)其抗氧化及降血糖活性。結(jié)果表明,通過(guò)果汁復(fù)配,果汁樣品的氧化自由基
吸收能力無(wú)明顯改善,而降血糖活性研究結(jié)果顯示,復(fù)合果汁抑制 α-葡萄糖苷酶的 IC50值在 0.16~0.25 mg GAE/mL 之間,均小于單
一果汁的 IC50值(0.30~0.49 mg GAE/mL),表明復(fù)配對(duì) α-葡萄糖苷酶的抑制作用表現(xiàn)出顯著的增強(qiáng)效果,且聯(lián)合指數(shù)均小于 0.9,其
中柚子與桑葚-百香果-火龍果的聯(lián)合指數(shù)最低為 0.57。抑制動(dòng)力學(xué)研究表明,桑葚果汁表現(xiàn)為對(duì) α-葡萄糖苷酶的非競(jìng)爭(zhēng)型抑制,而其
他三種果汁均為混合型抑制,抑制常數(shù)以桑葚果汁最低為 22.2 mg/mL??偟膩?lái)說(shuō),桑葚、百香果、柚子、火龍果果汁復(fù)配具有一定
的增強(qiáng)對(duì) α-葡萄糖苷酶的抑制作用的效果,各組分表現(xiàn)出協(xié)同作用,且機(jī)制研究表明,具有較強(qiáng)活性的桑葚果汁可作為一種非競(jìng)爭(zhēng)
性抑制的原料應(yīng)用于復(fù)合果汁中。
關(guān)鍵詞:復(fù)合果汁;協(xié)同;抗氧化;降血糖;動(dòng)力學(xué)
文章篇號(hào):1673-9078(2022)02-87-93 DOI: 10.13982/j.mfst.1673-9078.2022.2.0584
Synergistic Inhibition and Mechanism of Mulberry Fruit, Passion Fruit,
Pomelo and Pitaya Fruit Compound Juiceon α-glucosidase Inhibition
DONG Yuhao, CHEN Chun*
, FU Xiong
(School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China)
Abstract: In order to study the synergistic effect of juice on bioactivity in compound system, mulberry fruit, passion fruit, pomelo and
pitaya fruit with rich active substances were selected as materials. The four single juices were mixed based on polyphenol contents, and their
antioxidant and hypoglycemic activities were examined. The results showed that the oxygen radical absorbance capacity of compound juice
showed no significant improvement. The inhibitory activities on α-glucosidase were significantly enhanced, specifically, the IC50 values of
compound juice were between 0.16~0.25 mg GAE/mL, both less than those of single juice (0.30~0.49 mg GAE/mL). The combination index
values were all less than 0.9, among which the value of pomelo and mulberry fruit-passion fruit-pitaya fruit showed the lowest value of 0.57.
The inhibition kinetics research indicated that mulberry fruit juice exhibited non-competitive inhibition type on α-glucosidase, while the other
three juices were mixed inhibition type. Moreover, the lowest inhibition constant was 22.2 mg/mL in mulberry fruit juice. Generally, this
research demonstrated that the combination of fruit juice had synergistic effect on enhancing α-glucosidase inhibition activity. Furthermore, the
mulberry fruit juice with great activity was suggested to be used as the non- competitive inhibition material in compound juice.
Key words: compound juice; synergism; antioxidant; hypoglycemic; kinetics
引文格式:
董宇豪,陳春,扶雄.桑葚、百香果、柚子及火龍果復(fù)合果汁協(xié)同抑制 α-葡萄糖苷酶的作用及機(jī)制[J].現(xiàn)代食品科技,2022,38(2):87-93
DONG Yuhao, CHEN Chun, FU Xiong. Synergistic inhibition and mechanism of mulberry fruit, passion fruit, pomelo and pitaya fruit
compound juiceon α-glucosidase inhibition [J]. Modern Food Science and Technology, 2022, 38(2): 87-93
收稿日期:2021-06-02
基金項(xiàng)目:國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2017YFD0400703-2);國(guó)家自然科學(xué)基金資助項(xiàng)目(32001647)
作者簡(jiǎn)介:董宇豪(1997-),女,碩士,研究方向:功能性碳水化合物,E-mail:972923975@qq.com
通訊作者:陳春(1988-),男,博士,助理研究員,研究方向:功能性碳水化合物,E-mail:chenc@scut.edu.cn