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 | "Description" by FRanier (9976 pt) | 2019-Aug-02 16:50 |
| Evaluation | N. Experts | Evaluation | N. Experts |
|---|---|---|---|
| 1 | 6 | ||
| 2 | 7 | ||
| 3 | 8 | ||
| 4 | 9 | ||
| 5 | 10 |
Lettuce (Lactuca sativa L.) is an annual vegetable belonging to the Compositae family and is widespread in all countries with a temperate climate.
The genus "lactuca" has about 100 species.
Best known lettuce variety:
Other varieties of lettuce with popular names:
Lettuce may be green or red and it is, with chicory, among the best known salad in the world.
In the leaves are found phenolic compounds and ascorbic acid that give the lettuce antioxidant contents especially in red lettuce. The minerals phosphorus, potassium, calcium and magnesium are present in larger quantities in green lettuce (1).
They are also present, especially in the leaves: saponins, alkaloids, sesquiterpenes and glucosinolates (2).
There are some carotenoid antioxidants in both varieties of lettuce (3):
Lettuce is therefore a plant with good characteristics for human health.
But the dangers are the soil pollution due to heavy metals and arsenic.
References_________________________________________
(1) Cultivar-Specific Performance and Qualitative Descriptors for Butterhead Salanova Lettuce Produced in Closed Soilless Cultivation as a Candidate Salad Crop for Human Life Support in Space. El-Nakhel C, Giordano M, Pannico A, Carillo P, Fusco GM, De Pascale S, Rouphael Y. Life (Basel). 2019 Jul 14;9(3). pii: E61. doi: 10.3390/life9030061.
(2) LC-MS Untargeted Metabolomics To Explain the Signal Metabolites Inducing Browning in Fresh-Cut Lettuce. García CJ, García-Villalba R, Gil MI, Tomas-Barberan FA. J Agric Food Chem. 2017 Jun 7;65(22):4526-4535. doi: 10.1021/acs.jafc.7b01667.
(3) Fruits and vegetables that are sources for lutein and zeaxanthin: the macular pigment in human eyes. Olaf Sommerburg, Jan E E Keunen, Alan C Bird, Frederik J G M van Kuijk Br J Ophthalmol. 1998 Aug;82(8):907-10.
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