Study on the antifungal activity and mechanism of tea saponin from Camellia oleifera cake

2022 ◽  
Author(s):  
Zhiliang Yu ◽  
Xuehui Wu ◽  
Junhua He
Keyword(s):  
Antifungal Activity ◽  
Camellia Oleifera ◽  
Tea Saponin

Antibacterial activity of tea saponin from Camellia oleifera shell by novel extraction method

2020 ◽  
Vol 153 ◽  
pp. 112604
Author(s):  
Ying Zhao ◽  
Ruiqi Su ◽  
Wenting Zhang ◽  
Guang-Long Yao ◽  
Jian Chen
Keyword(s):  
Antibacterial Activity ◽  
Extraction Method ◽  
Camellia Oleifera ◽  
Tea Saponin ◽  
Camellia Oleifera Shell

scholarly journals Insecticidal Activity and Insecticidal Mechanism of Total Saponins from Camellia oleifera

Molecules ◽  
2019 ◽  
Vol 24 (24) ◽  
pp. 4518 ◽  
Author(s):  
Chuanjian Cui ◽  
Yunqin Yang ◽  
Tianyu Zhao ◽  
Kangkang Zou ◽  
Chuanyi Peng ◽  
...  
Keyword(s):  
Gradient Elution ◽  
Intestinal Wall ◽  
Toxicity Tests ◽  
Contact Toxicity ◽  
Camellia Oleifera ◽  
Tea Plantation ◽  
Pests And Diseases ◽  
Tea Saponin ◽  
Lepidopteran Pest ◽  
Chemical Pesticides

Chemical pesticides are commonly used during the cultivation of agricultural products to control pests and diseases. Excessive use of traditional pesticides can cause environmental and human health risks. There are ongoing searches for new plant-derived pesticides to reduce the use of chemical pesticides. In this study, tea saponin extracts of different purities were extracted from Camellia oleifera seeds using AB-8 macroporous resin and gradient elution with ethanol. The insecticidal effects of the tea saponin extracts were evaluated by contact toxicity tests and stomach toxicity tests using the lepidopteran pest of tea plantation, Ectropis obliqua. The total saponins extracted using 70% ethanol showed strong contact toxicity (LC50 = 8.459 mg/L) and stomach toxicity (LC50 = 22.395 mg/L). In-depth mechanistic studies demonstrated that tea saponins can disrupt the waxy layer of the epidermis, causing serious loss of water, and can penetrate the inside of the intestine of E. obliqua. After consumption of the tea saponins, the intestinal villi were shortened and the cavities of the intestinal wall were disrupted, which resulted in larval death. This study highlights the potential of tea saponins as a natural, plant-derived pesticide for the management of plant pests.

Simultaneous extraction of oil and tea saponin from Camellia oleifera Abel. seeds under subcritical water conditions

2018 ◽  
Vol 174 ◽  
pp. 88-94 ◽  
Author(s):  
Hong Wu ◽  
Changzhu Li ◽  
Zhenmei Li ◽  
Rukuan Liu ◽  
Aihua Zhang ◽  
...  
Keyword(s):  
Subcritical Water ◽  
Camellia Oleifera ◽  
Simultaneous Extraction ◽  
Tea Saponin ◽  
Water Conditions

scholarly journals Diversity and Antifungal Activity of Endophytic Fungi Associated with Camellia oleifera

Mycobiology ◽  
2018 ◽  
Vol 46 (2) ◽  
pp. 85-91 ◽  
Author(s):  
Jinxiu Yu ◽  
Ying Wu ◽  
Zhen He ◽  
Mi Li ◽  
Kaiming Zhu ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Endophytic Fungi ◽  
Camellia Oleifera

Antifungal activity of a flavonoid-rich fraction from Costus spicatus leaves against dermatophytes

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
DN Silva ◽  
MJ Gonçalves ◽  
MT Amaral ◽  
MT Batista
Keyword(s):  
Antifungal Activity

Antifungal Activity of Brassica rapa-Derived Extracts Against F. oxysporum

Planta Medica ◽  
2013 ◽  
Vol 79 (10) ◽  
Author(s):  
JE Fierro ◽  
P Jiménez ◽  
ED Coy-Barrera
Keyword(s):  
Antifungal Activity ◽  
Brassica Rapa

Improved isolation of α-mangostin from the fruit hull of Garcinia mangostana and its antioxidant and antifungal activity

Planta Medica ◽  
2006 ◽  
Vol 72 (11) ◽  
Author(s):  
J Puripattanavong ◽  
W Khajorndetkun ◽  
W Chansathirapanich
Keyword(s):  
Antifungal Activity ◽  
Garcinia Mangostana
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