KHẢO SÁT ĐẶC ĐIỂM THỰC VẬT, MÃ VẠCH DNA VÀ SƠ BỘ THÀNH PHẦN HÓA HỌC CỦA CÂY TRÀ DORMOY -CAMELLIA DORMOYANA (PIERRE) SEALY, THEACEAE

Abstract

 Background: Dormoy tea trees are grown in many places in Central and Southern Vietnam. Leaf extracts have the effect of increasing the immune response, supporting the treatment of HIV/AIDS, but there have not many scientific reports. Objectives: Survey of botanical characteristics, DNA barcodes to correcting identification of Dormoy tea and preliminary phytochemical screening. Materials and method: Dormoy tea fresh plants collected in Binh ChanhHo Chi Minh City were analyzed, taken photos, described the morphological and anatomical characteristics, traditional powder, analyzed gene matK sequence, and preliminary phytochemical screening was conducted by improved Ciuley method. Results: Dormoy tea was identified as Camellia dormoyana (Pierre) Sealy, based on morphological characteristics and gene matK sequence with the following featured morphological characteristics: Numerous sepal, petal and stamen, 4 carpels, hypogynous; traditional powder (characteristic is sclereid) and phytochemical constituents include: Essential oils, fats, sterols, flavonoids, saponins, tannins, carotenoids and courmarine. Conclusion: The study confirms the scientific name of Dormoy tea in Vietnam as Camellia dormoyana (Pierre) Sealy, Theaceae together with the anatomical characteristics of stems, leaves and the chemical composition of the leaves.