Phytochemicals and Overall Quality of Leafy Lettuce (Lactuca sativa L.) Varieties Grown in Closed Hydroponic System
Phytochemicals and Overall Quality of Leafy Lettuce (Lactuca sativa L.) Varieties Grown in Closed Hydroponic System
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DOI：
10.1111/jfq.12234
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发表时间：
2016-12-01
影响因子：
3.3
通讯作者：
Sivakumar, Dharini
中科院分区：
文献类型：
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作者：
Mampholo, Bevly M.;Maboko, Martin M.;Sivakumar, Dharini
莴苣（Lactuca sativa L.）生菜是一种受欢迎的沙拉蔬菜，食用生菜对健康有很多好处。本研究的目的是选择生菜品种生长在一个封闭的水培系统的基础上，其形态参数，植物化学和矿物质含量的混合鲜切沙拉或整个产品。主成分分析显示了三个独立的组的基础上的生物活性化合物，颜色值和鲜叶质量的16个生菜品种。第1组;多红4号含有最高浓度的总酚，黄酮类化合物（异鼠李素，槲皮素，山奈酚，表儿茶素，mycertin，花青素），胡萝卜素，抗坏血酸和较高的抗氧化性能和较低的叶鲜质量。第二组;包括绿色莴苣品种（Multi绿色3和Multi绿色1）和红色品种（Cantarix、Lunix、Solarix、VenezaRoxa、Feska），显示出适度较高的生物活性化合物和鲜叶质量。第3组含有绿色莴苣品种（Smile、Palmir、哈代、Nasir、Monary、Atlantis和Vera绿色Frilly），并且显示出较低的生物活性化合物，叶具有较高的鲜质量。红莴苣品种中含有丰富的生物活性物质和抗氧化活性物质，主要是由于总酚和黄酮类化合物含量较高。Multired 4（红色）、Multi绿色3（绿色）和Multi绿色1（绿色）以及其他红色生菜品种可推荐用于混合生菜沙拉或作为整个产品。生菜品种的选择对于生菜混合鲜切或作为整个产品很重要。因此，了解不同生菜品种的植物化学成分对于提高饮食中的抗氧化剂和营养摄入量非常重要。
Lettuce (Lactuca sativa L.) is a popular salad vegetable and consumption of lettuce has many health benefits. The objective of this study was to select lettuce varieties grown in a closed hydroponic system based on their morphological parameters, phytochemical and mineral content for mixed fresh cut salads or as whole product. Principal component analysis illustrated three separate groups based on the bioactive compounds, color values and fresh leaf mass for the 16 lettuce varieties. Group 1; Multired 4 contained the highest concentrations of total phenols, flavonoids (isohamnetin, quercetin, kaempferol, epicatechin, mycertin, anthocyanin), -carotene, ascorbic acid and higher antioxidant property and lower leaf fresh mass. Group 2; included the green lettuce varieties (Multigreen 3 and Multigreen 1) and the red varieties (Cantarix, Lunix, Soltero, Veneza Roxa, Feska) revealed moderately higher in bioactive compounds and fresh leaf mass. Group 3 contained the green lettuce varieties (Smile, Palmir, Hardy, Nasir, Monary, Atlantis and Vera Green Frilly) and showed lower bioactive compounds with leaf higher fresh mass. Red lettuce varieties are rich in bioactive compounds and antioxidant property mainly due to higher total phenols and flavonoid compounds. Multired 4 (red), Multigreen 3 (green) and Multigreen 1 (green) and other red lettuce varieties can be recommended for mixed lettuce salads or as whole product.Practical ApplicationsLettuce consumption is determined by color, size, texture, taste and nutritional properties. Choice of lettuce varieties is important for lettuce mixed fresh cuts or as a whole product. Therefore, it is important to profile the phytochemical composition in different lettuce varieties to improve the antioxidant and nutrient intake in the diet.