Bioactive components and antibacterial activities of hydrolate extracts by optimization conditions from Paeonia ostii T. Hong & J. X. Zhang
Bioactive components and antibacterial activities of hydrolate extracts by optimization conditions from Paeonia ostii T. Hong & J. X. Zhang
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DOI:
10.1016/j.indcrop.2022.115737
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发表时间:
2022-11
影响因子:
5.9
通讯作者:
Ziwei Xin;Weizong Yang;Yihao Duan;Wenjia Wang;L. Niu;Daoyang Sun;Yanlong Zhang
中科院分区:
文献类型:
--
作者:
Ziwei Xin;Weizong Yang;Yihao Duan;Wenjia Wang;L. Niu;Daoyang Sun;Yanlong Zhang
Tree peony is an economically important plant with nine wild species distributed in China. Among them,Paeonia ostiiT. Hong & J. X. Zhang is one of the most cultivated wild species for its ornamental, medicinal, and edible oil values. However, the biochemical composition and biological activities of hydrolate extracts fromP. ostiiare largely unknown. In this study, we investigated the potentials of variousP. ostiiorgans for being used as antibacterial agents. The single-factor optimization and Box-Behnken Design (BBD) experiments were performed to determine the optimal hydrosol extraction conditions as follows: extraction duration of 4 h, temperature of 90 °C, pressure of 0.35 MPa, and ratio of 6:1. In total, 150 volatile chemicals were identified and quantified fromP. ostiithrough gas chromatography-mass spectrometry (GC-MS). The antibacterial activities against eight Gram-positive and Gram-negative bacterial were examined. Among the volatile substances, mono-terpenoids (31.36–77.28 %) was of the highest content inP.ostii, followed by alcohols (17.69–26.82 %). The quantitative test demonstrated theP. ostiihydrosols being significantly effective againstStaphylococcus aureusandStreptococcus hemolytis-β. In particular, the newly-grown leaf hydrosols displayed more pronounced antibacterial effects than those from other organ, with the inhibition zones and minimal inhibitory concentrations (MICs) being 10.65–17.5 mm and 0.78–12.5 mg/mL, respectively. The results indicate that the hydrolate extracts fromP. ostiipossessed remarkable antibacterial activities against some common skin-infecting and food-borne bacterial pathogens, implying thatP. ostiicould be a potential source for antibacterial agents for food, pharmaceutical, and cosmetics.