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42 results about "Meliaceae" patented technology

Meliaceae, the mahogany family, is a flowering plant family of mostly trees and shrubs (and a few herbaceous plants, mangroves) in the order Sapindales. They are characterised by alternate, usually pinnate leaves without stipules, and by syncarpous, apparently bisexual (but actually mostly cryptically unisexual) flowers borne in panicles, cymes, spikes, or clusters. Most species are evergreen, but some are deciduous, either in the dry season or in winter.

Natural repairing and recovering method of deteriorated grassland in loess plateau

The invention relates to a natural repairing and recovering method of deteriorated grassland in the loess plateau, and belongs to the technical field of recovering methods of the deteriorated grassland. The method is based on forbidden recovering and supplemented by the manual control and manual interference measures, namely cement stand columns, chain line fences and other forbidden facilities are arranged to completely forbid the original areas where grassland vegetation is destroyed and degraded seriously or agriculture and forestry can not be operated and forage grass can grow, human and animal interference can be controlled strictly, and chance and time for living and multiplying of grassland are given. The method can improve the converge degree of deteriorated grassland vegetation by 50-75% and the biomass of the grassland vegetation by 50-80%, the diversity of species is richer and richer, the number of grassland vegetation and species is increased to 313 from 68 before the forbidding, the grassland quality is improved, and in the plant structure of the recovered grassland community, the grass family and feverfew plants account for 26.8%, the beam or pea family plants account for 8.3%, and the other plants accounting for 64.9% are included in the 33 families. The ecological economy and social benefits of the grassland are significant, and the grassland becomes the demonstration model of the loess plateau.
Owner:NORTHWEST A & F UNIV

Extraction and separation technology and production process of limonin glucoside

The invention relates to an extraction and separation technology and a production process of limonin glucoside. A limonin substance is a triterpene ingredient existing in rutaceae and meliaceae plants, has anti-inflammatory and analgesic effects and an effect of resisting various cancer cells and is mainly applied to food additives and cosmetics. But the flavor of the limonin substance is bitter, and the solubility is poorer, so that the wide application of the limonin substance is limited. The limonin glucoside is an advanced glycation end product of limonin, has the characteristics of no foreign flavor, good solubility, solution stability and the like and has a wider market prospect. An extraction process of the limonin glucoside is as follows: crushing and sieving, reflux extraction and concentration, alcohol precipitation, impurity removal, resin separation, decolorization, column chromatography and detection. The natural content of the limonin glucoside is about 0.02%. By the aid of the extraction and separation technology and the production process of limonin glucoside and a method, a target product can be effectively enriched, products with different specifications of 60%, 90%, 98% and the like are finally obtained, and the method is simple, convenient, feasible and suitable for industrialization.
Owner:CHONGQING UNIV
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