THÀNH PHẦN HÓA HỌC, THÀNH PHẦN ĐỐI QUANG VÀ HOẠT TÍNH DIỆT ẤU TRÙNG MUỖI Aedes aegypti VÀ Aedes albopictus CỦA TINH DẦU Piper chaudocanum C. DC.
Từ khóa
DOI:
https://doi.org/10.26459/hueunijns.v135i1C.8461Tóm tắt
Tinh dầu Piper chaudocanum C. DC. thu được với hiệu suất 0,15% (w/w). Các hợp chất được định danh chiếm 96,0% tổng thành phần tinh dầu, trong đó caryophyllene oxide (28,2%), β-pinene (13,8%) và α-pinene (10,6%) là các thành phần chính. Phân tích Chiral GC-MS lần đầu tiên xác định thành phần đối quang của tinh dầu, với các đồng phân ưu thế gồm (–)-α-pinene (92,1%), (–)-β-pinene (93,1%) và (–)-limonene (80,2%). Tinh dầu có hoạt tính diệt ấu trùng đáng kể đối với Aedes aegypti và Aedes albopictus với giá trị LC₅₀ sau 24 giờ lần lượt là 37,58 và 38,50 µg/mL.Lượt tải
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