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Rapid screening of toxic glycoalkaloids and micronutrients in edible nightshades ( Solanum spp.)
Journal of Food and Drug Analysis ( IF 3.6 ) Pub Date : 2018-04-01 , DOI: 10.1016/j.jfda.2017.10.005
Bo Yuan 1 , David Byrnes 2 , Daniel Giurleo 2, 3 , Thomas Villani 2, 3 , James E Simon 2, 3 , Qingli Wu 1, 2, 3
Affiliation  

African indigenous vegetables (AIVs) because of their nutrient density have the unique potential to reduce micronutrient deficiencies in sub-Saharan Africa, yet some may also contain anti-nutritive compounds. Vegetable nightshades from Solanum americanum, Solanum nigrum, Solanum scabrum and Solanum villosum are among the major AIVs used as a leafy vegetables and consumed regularly in many countries in sub-Sahara Africa. These under-recognized food crops have not been subjected to extensive studies for their nutritional and antinutritive factors. In this study, 15 entries of the vegetable nightshades were field-grown and the leaves which are the consumed product of commerce chemically profiled by LC/ESI-MS. Twenty-three flavones, eight saponins, and two glycoalkaloids along with a phenolic acid of chlorogenic acid were identified by MS and UV data. Anti-nutrient glycoalkaloids were quantified as total aglycones after acidic hydrolysis using MS detection and found to be within safe-consumption thresholds by comparison with the glycoalkaloid level in the globally consumed Solanum member eggplants. Edible nightshades were also found to be sources of β-carotene, vitamin E and total polyphenols and exhibited high antioxidant activity. Results of this study support that consumption of vegetable nightshades are safe from the presence of glycoalkaloids and thus, can contribute to the reduction of micronutrient deficiency in sub-Sahara Africa.

中文翻译:

食用茄属植物(茄属)中有毒配糖生物碱和微量营养素的快速筛查

非洲本土蔬菜 (AIV) 因其营养密度而具有减少撒哈拉以南非洲地区微量营养素缺乏的独特潜力,但其中一些还可能含有抗营养化合物。来自美洲茄、龙葵、黄毛茄和绒毛茄的蔬菜茄属主要的 AIV,被用作叶菜类蔬菜,在撒哈拉以南非洲的许多国家经常食用。这些未被充分认识的粮食作物尚未对其营养和抗营养因子进行广泛研究。在这项研究中,15 种蔬菜茄属植物是在田间种植的,并且通过 LC/ESI-MS 对作为商业消费产品的叶子进行了化学分析。通过 MS 和 UV 数据鉴定出 23 种黄酮、8 种皂苷和两种配糖生物碱以及一种绿原酸酚酸。使用 MS 检测将抗营养配糖生物碱量化为酸水解后的总苷元,与全球消费的茄属茄子中的配糖生物碱水平相比,发现其在安全食用阈值内。还发现食用茄属植物是 β-胡萝卜素、维生素 E 和总多酚的来源,并表现出高抗氧化活性。这项研究的结果表明,食用植物茄属植物不会出现配糖生物碱的存在,因此有助于减少撒哈拉以南非洲地区的微量营养素缺乏症。还发现食用茄属植物是 β-胡萝卜素、维生素 E 和总多酚的来源,并表现出高抗氧化活性。这项研究的结果表明,食用植物茄属植物不会出现配糖生物碱的存在,因此有助于减少撒哈拉以南非洲地区的微量营养素缺乏症。还发现食用茄属植物是 β-胡萝卜素、维生素 E 和总多酚的来源,并表现出高抗氧化活性。这项研究的结果表明,食用植物茄属植物不会出现配糖生物碱的存在,因此有助于减少撒哈拉以南非洲地区的微量营养素缺乏症。
更新日期:2018-04-01
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