Nghiên cứu một số đặc điểm sinh học của chủng nấm dược liệu Cordyceps militaris bạch tạng (albino) phân lập tại Việt Nam

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Tác giả: Ngọc Ánh Đào, Thị Kim Trang Đỗ, Minh Nam Nguyễn, Bảo Trâm Trần, Văn Tuấn Trần, Thị Chiên Trương, Xuân Tạo Vũ

Ngôn ngữ: vie

Ký hiệu phân loại: 579.6 Mushrooms

Thông tin xuất bản: Khoa học & Công nghệ Việt Nam, 2023

Mô tả vật lý: 45297

Bộ sưu tập: Metadata

ID: 502451

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Cordyceps militaris is one of the important medicinal fungi in traditional medicine. The fruiting body of C. militaris contains various bioactive compounds that have health-enhancing effects and support the treatment of various diseases. Therefore, this fungus is a potential source of medicinal materials for the development of healthcare products. The search for new strains of C. militaris with high yield, quality, and uniqueness is always of great interest. This study has provided new findings on some biological characteristics of an albino strain of C. militaris isolated in Vietnam. The albino strain of C. militaris SHBTQ was isolated and accurately identified based on morphological characteristics and the ITS (internal transcribed spacer) sequence of ribosomal DNA. The mycelial of C. militaris SHBTQ is white and remains stable for five successive generations. The most suitable carbon and nitrogen sources for the growth of the albino SHBTQ strain were sucrose and yeast extract, respectively. Notably, the SHBTQ strain is capable of forming fruiting bodies, with an average fresh fruiting body yield of 30 g/box, a biological efficiency of 12.2%, and a cordycepin content of 10.45 mg/g of dried fruiting bodies. This newly discovered strain offers great potential for further applications in production.Cordyceps militaris là một loài nấm dược liệu quan trọng trong y học cổ truyền. Quả thể nấm C. militaris chứa nhiều hoạt chất quý có tác dụng tăng cường sức khỏe và hỗ trợ điều trị nhiều loại bệnh. Do đó, loài nấm này được coi là nguồn dược liệu tiềm năng cho phát triển các sản phẩm chăm sóc sức khỏe. Việc tìm kiếm các chủng nấm C. militaris mới có năng suất, chất lượng cao và độc đáo luôn được các nhà nghiên cứu quan tâm. Bài báo đưa ra những kết quả mới về một số đặc điểm sinh học của chủng nấm C. militaris bạch tạng (albino) phân lập tại Việt Nam. Chủng nấm bạch tạng C. militaris SHBTQ được phân lập và định danh chính xác dựa trên các đặc điểm hình thái và trình tự vùng ITS của rDNA. Hệ sợi chủng nấm C. militaris SHBTQ có màu trắng và duy trì ổn định qua 5 thế hệ liên tiếp. Nguồn carbon và nitơ thích hợp cho sự sinh trưởng của chủng nấm bạch tạng C. militaris SHBTQ tương ứng là saccarose và cao nấm men. Đặc biệt, chủng nấm bạch tạng C. militaris SHBTQ có khả năng hình thành quả thể với năng suất trung bình đạt 30 g/hộp, năng suất sinh học đạt 12,2% và hàm lượng cordycepin đạt 10,45 mg/g quả thể khô. Đây là chủng nấm mới có tiềm năng ứng dụng trong sản xuất.

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