Natural antioxidant of rosemary extract used as an additive in the ultrasound-assisted extraction of anthocyanins from lingonberry (Vaccinium vitis-idaea L.) pomace
Natural antioxidant of rosemary extract used as an additive in the ultrasound-assisted extraction of anthocyanins from lingonberry (Vaccinium vitis-idaea L.) pomace
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迷迭香提取物的天然抗氧化剂用作超声波辅助从越橘（Vaccinium vitis-idaea L.）果渣中提取花青素的添加剂
DOI：
10.1016/j.indcrop.2019.05.074
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发表时间：
2019-10-05
影响因子：
5.9
通讯作者：
Zhou, Zhiqiang
中科院分区：
文献类型：
--
作者：
Jin, Yusong;Liu, Zaizhi;Zhou, Zhiqiang
研究了不同鼠尾草酸浓度（30%、60%、90%）的天然抗氧化剂迷迭香提取物和3种合成抗氧化剂对越橘花色苷提取的影响。果渣在超声波辐照条件下进行了比较。结果表明：抗氧化剂迷迭香提取物中鼠尾草酸含量为30%（纯度），0.02%乙醇体积分数40%，pH 1.5，液固比20 mL/g，超声频率80 kHz，超声辐照功率170 W，反应温度55 ℃，超声辐照时间为35 min（不添加迷迭香提取物），我们获得了4.12 +/- 0.18 mg/g的令人满意的花青素苷产率（矢车菊素-3-半乳糖苷产率为3.36 +/-0.14 mg/g，矢车菊素-3-葡萄糖苷产率为0.15 +/-0.01 mg/g，矢车菊素-3-阿拉伯糖苷产率为0.61 +/-0.03 mg/g）。首次添加天然抗氧化剂迷迭香提取物以抑制花青素的氧化，并且所提出的天然抗氧化剂迷迭香提取物表现出替代合成抗氧化剂的潜力，具有更大的安全性。
The effects of natural antioxidant rosemary extracts with different carnosic acid concentrations (30%, 60%, and 90%) and of three synthetic antioxidants in the extraction of anthocyanins from lingonberry (Vaccinittm vitis-idaea L.) pomace under ultrasound irradiation conditions were compared. The optimum extraction conditions were selected: antioxidant rosemary extract with carnosic acid of 30% (purity), 0.02% (carnosic acid to lingonberry pomace sample mass ratio); ethanol volume fraction, 40%; pH 1.5; liquid-solid ratio, 20 mL/g; ultrasound frequency, 80 kHz; ultrasound irradiation power, 170 W; reaction temperature, 55 degrees C; and ultrasound irradiation time, 35 min. Compared with traditional extraction techniques (no addition of rosemary extract), we obtained satisfactory yields of anthocyanins of 4.12 +/- 0.18 mg/g (cyanidin-3-galactoside yield of 3.36 +/- 0.14 mg/g, cyanidin-3-glucoside yield of 0.15 +/- 0.01 mg/g and cyanidin-3-arabinoside yield of 0.61 +/- 0.03 mg/g). The supplement of natural antioxidant rosemary extract was first added to inhibit the oxidation of anthocyanins, and the proposed natural antioxidant rosemary extract exhibited potential to replace synthetic antioxidants with greater security.