Xueyan is the brand name of natural colloid secretion of mallow. Similar to peach gum, it is mainly produced in tropical and subtropical regions. For example, Xueyan produced in Myanmar is the secretion of Malpighian maculata, and Xueyan produced in Vietnam, Indonesia and other places is the secretion of Malpighian villosa, with the trade names of "Vietnamese Xueyan, Indonesian Xueyan and Yunnan Xueyan". This plant is also distributed in a small amount in Yunnan, China.

In terms of nutrients, the snow weir is composed of polysaccharides and other substances. Water-insoluble macromolecular polysaccharide can absorb a large number of water molecules to form gel, which can neither be digested and absorbed by gastrointestinal tract nor generate energy, so it can reduce the body's sugar intake by delaying the absorption of sugar by intestinal tract, thus reducing blood sugar in the body and controlling energy intake.

Classification of snow swallow

1. Myanmar Xueyan: Xueyan was first discovered in Myanmar and is the pulp secretion of apple trees. In order to distinguish it from Indian snow swallow, it is called Myanmar snow swallow or Myanmar brushed snow swallow. It is mainly grown in Myanmar and Yunnan, China, with a small amount in Vietnam. In addition to the wild, there are also artificially planted snow swallow trees in Myanmar and Yunnan, and their nutritional composition and efficacy are consistent with those of wild snow swallow.

2. Indian snow swallow: India also has a history of eating snow swallow. Indian snow swallow is called Karaya gum in India and Kara jelly or Kara gum in China. They are the gums of prickly apple trees belonging to the family Typha. Because it is produced in India, it is similar to snow swallow after soaking, so it is called Indian snow swallow and has nothing to do with snow swallow.

Reference to the above content: Baidu Encyclopedia-Xueyan