土巴革属植物粗提物的植物化学成分及抗氧化活性分析

IF 2 4区 医学 Q2 INTEGRATIVE & COMPLEMENTARY MEDICINE Journal of Traditional Chinese Medicine Pub Date : 2018-04-01 DOI:10.1016/j.jtcm.2018.04.005
Samkeliso Takaidza , Fanyana Mtunzi , Michael Pillay
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引用次数: 51

摘要

目的评价土巴葛粗提物的化学成分和抗氧化活性。方法采用标准方法进行初步植物化学分析。采用Folin-Ciocalteu法测定植物提取物中总酚酸含量,采用氯化铝比色法测定总黄酮含量。采用1,1-二苯基-2-吡啶肼和2,2 ' -氮基-双(3-乙基苯并噻唑-6-磺酸)测定法评价其抗氧化活性。结果植物化学筛选结果显示,图巴格菌属植物中含有黄酮类、苷类、单宁类、萜类、皂苷类和甾体。不同植物提取物的总酚酸和类黄酮含量不同,每克鲜料的没食子酸当量为4.50 ~ 11.10 mg,槲皮素当量为3.04 ~ 9.65 mg。基于1,1-二苯基-2-吡啶肼基(分别为0.06和0.08 mg/mL)和2,2 ' -氮基-双(3-乙基苯并噻唑-6-磺酸)(分别为0.06和0.03 mg/mL)的IC50值较低,表明它们具有潜在的抗氧化活性。结论图巴赤藓属植物中个别化合物的抗氧化活性应进行分离分析,因为某些化合物在纯化时可能具有最佳的抗氧化活性。
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Analysis of the phytochemical contents and antioxidant activities of crude extracts from Tulbaghia species

OBJECTIVE

To assess the phytochemical contents and antioxidant activities of crude extracts from selected Tulbaghia species.

METHODS

Standard methods were used for preliminary phytochemical analysis. The total phenolic acid contents of the plant extracts were determined using the Folin-Ciocalteu method, and the total flavonoid contents were determined using the aluminum chloride colorimetric method. 1,1-Diphenyl-2-picrylhydrazyl and 2,2’-Azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) assays were used to evaluate the antioxidant activities.

RESULTS

Phytochemical screening showed flavonoids, glycosides, tannins, terpenoids, saponins, and steroids were present in the Tulbaghia species. The total phenolic acid and flavonoid contents varied in the different plant extracts, ranging from 4.50 to 11.10 mg of gallic acid equivalents per gram of fresh material and 3.04 to 9.65 mg of quercetin equivalents per gram, respectively. The IC50 values determined for Tulbaghia alliacea and Tulbaghia violacea based on 1,1-diphenyl-2-picrylhydrazyl (0.06 and 0.08 mg/mL, respectively) and 2,2’-Azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) (0.06 and 0.03 mg/mL, respectively) were low and showed they had potential antioxidant activities.

CONCLUSION

Our results suggest that individual compounds from Tulbaghia species should be isolated for analysis of their antioxidant activity because some compounds may work best when pure.

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来源期刊
Journal of Traditional Chinese Medicine
Journal of Traditional Chinese Medicine INTEGRATIVE & COMPLEMENTARY MEDICINE-
CiteScore
2.40
自引率
3.80%
发文量
32269
审稿时长
2 months
期刊介绍: Journal of Traditional Chinese Medicine(JTCM) is devoted to clinical and theortical research on the use of acupuncture and Oriental medicine. The main columns include Clinical Observations, Basic Investigations, Reviews, Questions and Answers, an Expert''s Forum, and Discussions of Clinical Cases. Its key topics include acupuncture and electro-acupuncture, herbal medicine, homeopathy, masseotherapy, mind-body therapies, palliative care, and other CAM therapies.
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