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The research of cucurbitaceae found that
Qiu Minghua, a researcher at Kunming Institute of Botany, Chinese Academy of Sciences, was supported by National Natural Science Foundation and Yunnan Natural Science Foundation. He studied the chemical composition, structure and biological activity of representative plants of Cucurbitaceae by phytochemical research methods such as separation and extraction, structural identification and activity screening, and made a series of new progress, which not only enriched the database of natural products, but also had important academic and guiding significance for the sustainable utilization of new resources of chemical components of Cucurbitaceae. Its research achievement "Study on the Active Chemical Constituents of Medicinal Plants of Cucurbitaceae" recently won the second prize of Yunnan Natural Science Award in 2008.

A series of new resources of chemical constituents in Cucurbitaceae were discovered, which provided sufficient theoretical basis and foundation for the development and sustainable utilization of medicinal plants in Cucurbitaceae, especially Hemerocallis fulva, Siraitia grosvenorii, Cucurbitaceae and Momordica charantia. The structural analysis of the drug HEMEROCALLIS HEMEROCALLIS root element showed that there were daylily, daylily, daylily, daylily, daylily, daylily and so on. Hemsleya saponin Hma2 and Hma3 were found from Hemsleya, which provided a basis for further development and utilization of Hemsleya plants. I (Siamenoside, a new sweet glycoside, was found in Siraitia grosvenorii produced in Xishuangbanna, Yunnan Province, and its sweetness was 563 times that of sucrose. It is the sweetest new resource of cucurbitacin sweetener in the world. Cucurbitacin A is a dammarane triterpenoid glycoside found in pumpkin stems, and it is a new resource of ginsenoside or dammarane saponin.

According to the researchers, they found 1 12 new natural compounds by studying the chemical constituents and biological activities of 23 species of cucurbitaceae plants, especially the new compounds or structures such as didysaccharide, didymide A, undecene A and B, thunbergin I-III and cucurbitacin in bitter gourd in Fritillaria thunbergii.

The study also put forward a new pattern of structural classification of cucurbitacins, which reclassified the original five structural types into 12 structural types, which had an impact on the judgment pattern of structural classification of cucurbitacins triterpenoids and varieties in academic circles.

In addition, based on the study of chemical constituents of cucurbitaceae plants, the researchers put forward a relatively complete chemical classification system of cucurbitaceae from the perspective of chemical systematics, which fully reflected the auxiliary evidence of the chemical composition structure of cucurbitaceae plants to the Taklimakan classification system.