Views: 3 Author: Site Editor Publish Time: 2022-09-06 Origin: Site
Konjac is a perennial herb belonging to the genus konjac in the Araceae. It belongs to potato and taro crops in terms of cultivation.
Konjac was planted more than 1000-3000 years ago. It mainly grows in mountainous areas with an altitude of 400 ~ 1500 meters. Konjac likes temperature and humidity, and the suitable temperature is 20 ℃ ~ 30 ℃. Konjac contains glucomannan, starch, protein, various vitamins and trace elements such as potassium, phosphorus and selenium. The economically valuable component is glucomannan. Konjac is a plant that can extract a large amount of soluble dietary fiber in nature, and the purity of dietary fiber can reach more than 95%.
In terms of konjac planting distribution, China has the largest amount of konjac planting in Sichuan, Hubei, Yunnan, Guizhou, Shaanxi, Guangdong, Guangxi, Taiwan and other provinces, while the rest are distributed in Japan, Southeast Asia and other places. However, konjac in Southeast Asia (Myanmar, Vietnam, Thailand, Indonesia, etc.) is mainly wild, and there are signs of artificial cultivation in recent years.
The main component of konjac powder is glucomannan (KGM). Its chemical structure is that D-glucose and D-mannose residues with a molecular ratio of about 15:23 are polymerized through B-1, 4 glycosidic bonds to form a high molecular weight heteropolysaccharide with a molecular weight of 200000 ~ 2 million daltons.
konjac gum has a viscosity of up to 40000 MPa. S and a water absorption ratio of 40-100 times
konjac powder has excellent hydration, and its performance will not be reduced even in ice water
Amorphophallus konjac powder can form a unique toughness thermal irreversible gel
konjac powder belongs to non-ionic colloid, which is less affected by various ions than ionic colloid
1. Increase intestinal probiotics
80% of the four proteins that support human immunity exist in the intestine and are protected by bifidobacteria and Lactobacillus. Water soluble dietary fiber can be fermented and degraded by probiotics in large intestine to produce short chain fatty acids such as acetic acid, propionic acid and butyric acid, reduce the pH of large intestine, regulate intestinal flora, induce the production of a large number of aerobic probiotics, and inhibit anaerobic spoilage bacteria
2. Lose weight
After swelling in water, it will become larger and play the role of filling agent in the gastrointestinal tract, so that the human body will feel full and lose weight
3. Clear intestines and relieve constipation
Increase the water content and volume of feces and promote the excretion of feces.
4. Lipid and glucose lowering
It can delay the absorption of carbohydrates in the gastrointestinal tract and reduce postprandial blood sugar; Promote the conversion of cholesterol to cholic acid, reduce the recycling of cholic acid through the liver, and reduce the serum cholesterol level
5. Improve human immunity
Glucomannan has immunogenicity, covers the surface of intestinal wall, recognizes and adheres pathogenic microorganisms, makes pathogenic microorganisms proliferate slowly and lose activity, and improves immunity after being expelled through intestinal peristalsis.