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首页> 外文期刊>Research journal of medicinal plant >A comparison of the antifungal properties of onion (Allium cepa), ginger (Zingiber officinale) and garlic (Allium sativum) against Aspergillus flavus, Aspergillus niger and Cladosporium herbarum
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A comparison of the antifungal properties of onion (Allium cepa), ginger (Zingiber officinale) and garlic (Allium sativum) against Aspergillus flavus, Aspergillus niger and Cladosporium herbarum

机译：洋葱（洋葱葱），生姜（姜）和大蒜（大蒜）对黄曲霉，黑曲霉和植物标本的抗真菌性能比较

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摘要

Phytochemicals present in medicinal plants have health benefits and antimicrobial activity against some pathogenic bacteria. However, little research has been undertaken on the antifungal activity of these extracts. This research aim at testing the antifungal activity of organic ethanol extracts of onion {Allium cepa), ginger {Zingiber officinale) and garlic (Allium sativum) against three fungal isolates {A. flavus, A. niger and C. herbarium) in Potato Dextrose Agar (PDA). Filtered plant extracts were obtained using ethanolic extraction method. Antifungal sensitivity testing was undertaking using the pour plate technique and results obtained by measuring diameter of fungal growth over a 7 day incubation period. All organic plant extracts inhibited growth resulting in a marked significant difference (p<0.01) in growth diameter of fungi on media with extracts compared with same fungi on Potato Dextrose Agar without extracts. Ginger had the highest antifungal activity on all test fungi with a mean diameter of 1.40 cm followed by garlic (1.70 cm) and onion (1.80 cm) respectively whilst A. niger (2.54 cm) showed the highest resistance to the plant extracts followed by A. flavus (2.50 cm) and C. herbarum (1.18 cm). All plant extracts inhibited any observable growth pattern in C. herbarum for a 2 day period and <1 cm growth diameter in A. Flavus and A. Niger whilst the least growth measurement after day one of incubation in PDA only was >2.0 cm. This study confirms the antifungal potential of these plant extracts on the test fungi and suggests the possibility of employing them in food preservation were spoilage is mainly caused by fungi.
机译：药用植物中存在的植物化学物质具有健康益处，并且对某些病原细菌具有抗菌活性。然而，关于这些提取物的抗真菌活性的研究很少。这项研究旨在测试洋葱（洋葱），生姜（姜）和大蒜（大蒜）的有机乙醇提取物对三种真菌分离物（A.马铃薯右旋糖琼脂（PDA）中的黄曲霉，黑曲霉和植物标本室。使用乙醇提取法获得过滤的植物提取物。正在使用倾倒板技术进行抗真菌敏感性测试，并通过在7天的孵育期内测量真菌生长的直径来获得结果。所有有机植物提取物均抑制生长，导致与不含提取物的马铃薯右旋糖琼脂上的相同真菌相比，含有提取物的培养基上的真菌的生长直径具有显着显着差异（p <0.01）。生姜对所有测试真菌的抗真菌活性最高，平均直径分别为1.40 cm，大蒜（1.70 cm）和洋葱（1.80 cm），而黑曲霉（2.54 cm）对植物提取物的抗性最高。黄韧带（2.50厘米）和草形衣原体（1.18厘米）。所有植物提取物在2天的时间内都抑制了植物标本杆的任何可观察到的生长方式，在A. Flavus和A. Niger中的生长直径小于1 cm，而仅在PDA中孵育第一天后的最小生长测量值是> 2.0 cm。这项研究证实了这些植物提取物对测试真菌的抗真菌潜力，并暗示了将其用于食品保鲜的可能性，因为腐败主要是由真菌引起的。

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