Thành phần hoá học của keo ong từ loài ong không ngòi đốt Trigona minor

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả:

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Phát triển Khoa học & Công nghệ: Khoa học Tự nhiên, 2018

Mô tả vật lý: tr.59

Bộ sưu tập: Báo, Tạp chí

ID: 293733

Thêm vào giỏ Liên kết toàn văn

Keo ong là một sản phẩm từ tự nhiên được tạo ra từ loài ong, nó là hỗn hợp của nhựa cây trộn với các chất tiết ra từ tuyến nước bọt của loài ong. Keo ong có thành phần hóa học và hoạt tính sinh học phụ thuộc vào vùng địa lý, nguồn thức ăn và tùy vào loài ong. Ở Việt Nam, keo ong được sử dụng trong y học cổ truyền như là phương thuốc để cải thiện sức khỏe và ngăn ngừa bệnh tật. Từ cao ethanol của keo ong loài ong không ngòi đốt Trigona minor thuộc họ Ong mật (Apidae) đã phân lập được bốn hợp chất lignan. Cấu trúc các hợp chất này được xác định lần lượt là (+)- isolariciresinol (1), 5-methoxy-(+)-isolariciresinol (2) (+)-lyoniresinol (3) và 6-(4-hydroxy-3- methoxyphenyl)-3,7-dioxabicyclo-[3.3.0]octan-2-one (4) bằng các phương pháp phổ nghiệm kết hợp với so sánh tài liệu tham khảo. Trong đó, hợp chất 4 lần đầu tiên được tìm thấy từ tự nhiên và các hợp chất còn lại lần đầu tiên được phân lập từ keo ong của loài ong không ngòi đốt.Propolis is a natural product produced by bees, and it is a mixture of resins and other bee excretions. The chemical composition of each type of propolis and its associated bioactivities also depend on the geographical regions, its food and the bee species. In Vietnam, propolis has been used in traditional medicine as the remedy to improve health and prevent diseases. From the ethanolic extract of the stingless bee propolis Trigona minor (Meliponini, Apidae), four lignan compounds were isolated. Their chemical structures were determined as (+)-isolariciresinol (1), 5-methoxy-(+)- isolariciresinol (2), (+)-lyoniresinol (3), and 6-(4- hydroxy-3-methoxyphenyl)-3,7-dioxabicyclo[3.3.0] octan-2-one (4) by spectroscopic methods as well as comparing with data in the literature. Among them, compound 4 was the first isolated from natural sources, while others were isolated for the first time from this stingless bee propolis.

1.

Tạo bộ sưu tập với mã QR