Yes, the main reason why Luffa cylindrica is poisoned is that it contains an alkaloid called alkali glycoside, which is a toxic substance. If you find that loofah has bitter taste, don't continue to eat it. This is the best way to avoid suffering from loofah poisoning.
The bitterness of bitter luffa is controlled by genes, and genes can be inherited. If bitter luffa seeds are planted, the luffa that grows will also be bitter.
Extended information
Main value
Nutrition
Luffa contains protein, fat, carbohydrate, calcium, phosphorus, iron, vitamin B1 and vitamin C, as well as saponin, plant mucus, xylose gum, bitter substance of Luffa, citrulline and so on.
every 1g contains 1.4-1.5g of protein, .1g of fat, 4.3-4.5g of carbohydrate, .3-.5g of crude fiber, .5g of ash, 18-28mg of calcium, 39-45mg of phosphorus, .3-.6mg of riboflavin and .3-.5mg of nicotinic acid. Ascorbic acid 5-8mg.
Luffa contains B vitamins to prevent skin aging, vitamin C to whiten skin and other ingredients, which can protect skin, eliminate plaque and make skin white and tender. It is a rare beauty product, so Luffa juice is called "beauty water".
Cultivated varieties
Common cultivated varieties of loofah are: snake loofah and stick loofah. Snake-shaped loofah, also known as line loofah, has slender melon strips, some of which can reach more than 1 meter, slightly thicker in the middle and lower parts, green, slightly rough skin, and often fine wrinkles, with medium quality.
stick loofah, also known as meat loofah, has a short cylindrical shape to a long stick shape, with a slightly thicker lower part and a tapered front end, about 35 cm long and a transverse diameter of 3-5 cm, and the skin is mainly green.
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