Enzymatic Pretreatment Solvent-free Microwave Extraction of Fresh Cirsium setosum Essential Oil and Analysis of Antioxidant Activity

Enzymatic pretreatment combined with a solvent-free microwave method was used to extract essential oil from fresh Cirsium setosum. The yield of essential oil was used as the evaluation index, and the extraction process of essential oil was optimized through response surface methodology based on sing...

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Main Authors: Linju PAN, Dandan ZHAO, Xiaojie XU, Shiyu YANG, Xinyang GAO, Qi LU, Chunxia CHEN
Format: Article
Language:zho
Published: The editorial department of Science and Technology of Food Industry 2025-08-01
Series:Shipin gongye ke-ji
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Online Access:http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2024100100
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author Linju PAN
Dandan ZHAO
Xiaojie XU
Shiyu YANG
Xinyang GAO
Qi LU
Chunxia CHEN
author_facet Linju PAN
Dandan ZHAO
Xiaojie XU
Shiyu YANG
Xinyang GAO
Qi LU
Chunxia CHEN
author_sort Linju PAN
collection DOAJ
description Enzymatic pretreatment combined with a solvent-free microwave method was used to extract essential oil from fresh Cirsium setosum. The yield of essential oil was used as the evaluation index, and the extraction process of essential oil was optimized through response surface methodology based on single-factor experiments. The composition of essential oils extracted by different extraction methods was analyzed by infrared, gas chromatography-mass spectrometry (GC-MS), scanning electron microscopy, and thermogravimetry. The antioxidant capacity of the extracted oils was evaluated in terms of the scavenging ability of DPPH free radicals, hydroxyl free radicals, ABTS+ free radicals, and the iron-reduction capacity. The results showed that the optimal process conditions for extracting fresh Cirsium setosum essential oil by enzymatic pretreatment solvent-free microwave method were enzyme mixing ratio (cellulase:pectinase) 2:1, enzyme addition amount 1.5%, enzymatic hydrolysis time 1.5 h, microwave power 560 W, extraction time 40 min. Under these conditions, the essential oil yield was 0.17%±0.005%. The essential oil obtained by enzymatic pretreatment solvent-free microwave method contains a higher proportion of oxygen-containing compounds. Compared with the essential oil obtained by water extraction reflux method, the content increment of its essential oil components from high to low is n-hexadecanoic acid (36.50%), 2-methyltetradecane (3.82%), (Z)-9-octadecanamide (3.03%), 2,7-octadiene-1-ol (2.40%), allyl pentadecyl oxalate (1.81%), (Z)-1,5,9-undecatriene-2,6,10-trimethyl (1.55%), and (E)-2-decen-1-ol (1.04%). In addition, fresh Cirsium setosum essential oil extracted by enzymatic pretreatment solvent-free microwave method showed stronger antioxidant activity. Therefore, enzymatic pretreatment solvent-free microwave method is a green and effective technology for obtaining high-yield and high-quality essential oils from fresh Cirsium setosum, providing basic data and support for the extraction and development of Cirsium setosum essential oils.
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publisher The editorial department of Science and Technology of Food Industry
record_format Article
series Shipin gongye ke-ji
spelling doaj-art-b982df78b4e244f688f299b37432b5402025-08-20T04:03:21ZzhoThe editorial department of Science and Technology of Food IndustryShipin gongye ke-ji1002-03062025-08-01461613214510.13386/j.issn1002-0306.20241001002024100100-16Enzymatic Pretreatment Solvent-free Microwave Extraction of Fresh Cirsium setosum Essential Oil and Analysis of Antioxidant ActivityLinju PAN0Dandan ZHAO1Xiaojie XU2Shiyu YANG3Xinyang GAO4Qi LU5Chunxia CHEN6College of Life Sciences, Northeast Forestry University, Harbin 150040, ChinaCollege of Life Sciences, Northeast Forestry University, Harbin 150040, ChinaCollege of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, ChinaCollege of Life Sciences, Northeast Forestry University, Harbin 150040, ChinaCollege of Life Sciences, Northeast Forestry University, Harbin 150040, ChinaCollege of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, ChinaCollege of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, ChinaEnzymatic pretreatment combined with a solvent-free microwave method was used to extract essential oil from fresh Cirsium setosum. The yield of essential oil was used as the evaluation index, and the extraction process of essential oil was optimized through response surface methodology based on single-factor experiments. The composition of essential oils extracted by different extraction methods was analyzed by infrared, gas chromatography-mass spectrometry (GC-MS), scanning electron microscopy, and thermogravimetry. The antioxidant capacity of the extracted oils was evaluated in terms of the scavenging ability of DPPH free radicals, hydroxyl free radicals, ABTS+ free radicals, and the iron-reduction capacity. The results showed that the optimal process conditions for extracting fresh Cirsium setosum essential oil by enzymatic pretreatment solvent-free microwave method were enzyme mixing ratio (cellulase:pectinase) 2:1, enzyme addition amount 1.5%, enzymatic hydrolysis time 1.5 h, microwave power 560 W, extraction time 40 min. Under these conditions, the essential oil yield was 0.17%±0.005%. The essential oil obtained by enzymatic pretreatment solvent-free microwave method contains a higher proportion of oxygen-containing compounds. Compared with the essential oil obtained by water extraction reflux method, the content increment of its essential oil components from high to low is n-hexadecanoic acid (36.50%), 2-methyltetradecane (3.82%), (Z)-9-octadecanamide (3.03%), 2,7-octadiene-1-ol (2.40%), allyl pentadecyl oxalate (1.81%), (Z)-1,5,9-undecatriene-2,6,10-trimethyl (1.55%), and (E)-2-decen-1-ol (1.04%). In addition, fresh Cirsium setosum essential oil extracted by enzymatic pretreatment solvent-free microwave method showed stronger antioxidant activity. Therefore, enzymatic pretreatment solvent-free microwave method is a green and effective technology for obtaining high-yield and high-quality essential oils from fresh Cirsium setosum, providing basic data and support for the extraction and development of Cirsium setosum essential oils.http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2024100100fresh cirsium setosumessential oilresponse surface technology optimizationcomponent analysisantioxidant activity
spellingShingle Linju PAN
Dandan ZHAO
Xiaojie XU
Shiyu YANG
Xinyang GAO
Qi LU
Chunxia CHEN
Enzymatic Pretreatment Solvent-free Microwave Extraction of Fresh Cirsium setosum Essential Oil and Analysis of Antioxidant Activity
Shipin gongye ke-ji
fresh cirsium setosum
essential oil
response surface technology optimization
component analysis
antioxidant activity
title Enzymatic Pretreatment Solvent-free Microwave Extraction of Fresh Cirsium setosum Essential Oil and Analysis of Antioxidant Activity
title_full Enzymatic Pretreatment Solvent-free Microwave Extraction of Fresh Cirsium setosum Essential Oil and Analysis of Antioxidant Activity
title_fullStr Enzymatic Pretreatment Solvent-free Microwave Extraction of Fresh Cirsium setosum Essential Oil and Analysis of Antioxidant Activity
title_full_unstemmed Enzymatic Pretreatment Solvent-free Microwave Extraction of Fresh Cirsium setosum Essential Oil and Analysis of Antioxidant Activity
title_short Enzymatic Pretreatment Solvent-free Microwave Extraction of Fresh Cirsium setosum Essential Oil and Analysis of Antioxidant Activity
title_sort enzymatic pretreatment solvent free microwave extraction of fresh cirsium setosum essential oil and analysis of antioxidant activity
topic fresh cirsium setosum
essential oil
response surface technology optimization
component analysis
antioxidant activity
url http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2024100100
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