The Nutritional Quality Potential of Microgreens, Baby Leaves, and Adult Lettuce: An Underexploited Nutraceutical Source.
The Nutritional Quality Potential of Microgreens, Baby Leaves, and Adult Lettuce: An Underexploited Nutraceutical Source.
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DOI：
10.3390/foods11030423
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发表时间：
2022-01-31
期刊：
影响因子：
--
通讯作者：
Martínez-Cuenca MR
中科院分区：
文献类型：
--
作者：
Martínez-Ispizua E;Calatayud Á;Marsal JI;Cannata C;Basile F;Abdelkhalik A;Soler S;Valcárcel JV;Martínez-Cuenca MR
人们对地方品种生菜种植的兴趣日益浓厚，因为本土品种作为优质产品对消费者特别有吸引力。生菜是世界范围内流行的叶类蔬菜，由于人们普遍认为幼苗具有更高的营养价值，人们对食用初生叶（微型蔬菜）和幼苗（幼叶）的兴趣不断增长。对六种生菜地方品种和五个商业品种的一些生物活性化合物和抗氧化剂（叶绿素、类胡萝卜素、花青素、抗坏血酸、酚类、抗氧化活性）的含量进行了监测，并在三个发育阶段进行了比较：小生菜、幼苗和成株。早期阶段的抗坏血酸和酚类含量分别比成年生菜高42%和79%，其中红叶品种（CL4和L11）表现最为突出。这一发现与生菜显着的抗氧化能力一致，并与其色素含量（尤其是花青素）相关。成年生菜的营养价值取决于其大小、形状和头部结构，因为植物化学浓度受光调节。脆头生菜 (CL5) 中抗坏血酸、酚类物质和花青素的含量较低就是一个明显的例子（分别比成年生菜的平均值低 49%、67% 和 27%）。我们的结果表明生菜的营养特性存在很大差异，并强调传统品种是农业生物多样性的有用来源。
Interest in the cultivation of lettuce landraces is increasing because native varieties, as high-quality products, are particularly attractive to consumers. Lettuce is a popular leafy vegetable worldwide, and interest in the consumption of first leaves (microgreens) and seedlings (baby leaves) has grown due to the general belief that young plants offer higher nutritional value. The content of some bioactive compounds and antioxidants (chlorophylls, carotenoids, anthocyanins, ascorbic acid, phenols, antioxidant activity) was monitored in six lettuce landraces and five commercial varieties, and compared across three development stages: microgreen, baby, and adult. Ascorbic acid and phenolic contents were 42% and 79% higher, respectively, in the early stages than in adult lettuces, and red-leaf varieties (CL4 and L11) stood out. This finding agrees with lettuce’s marked antioxidant capacity and correlates with its pigment contents, especially anthocyanins. The nutritional value of adult lettuce is conditioned by its size, shape, and head structure as phytochemical concentrations are regulated by light. The low content of ascorbic acid, phenolics, and anthocyanins in crisphead lettuce (CL5) is a clear example (49, 67%, and 27% lower, respectively, than the adult mean). Our results indicate the wide variability of lettuces’ nutritional characteristics and emphasize that traditional varieties are a helpful source of agricultural biodiversity.
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影响因子：
4.3
作者：
Baslam, Marouane;Morales, Fermin;Goicoechea, Nieves
通讯作者：
Goicoechea, Nieves
影响因子：
8.8
作者：
Colonna, Emma;Rouphael, Youssef;De Pascale, Stefania
通讯作者：
De Pascale, Stefania
影响因子：
8.8
作者：
Favell, DJ
通讯作者：
Favell, DJ
影响因子：
6.1
作者：
Dewanto, V;Wu, XZ;Liu, RH
通讯作者：
Liu, RH
DOI：
10.1111/j.1365-2621.2009.01935.x
发表时间：
2009-06-01
影响因子：
3.3
作者：
Kenny, Olive;O'Beirne, David
通讯作者：
O'Beirne, David