菝葜(Serapias vomeracea)块茎挥发物的鉴定及采收时间和干燥方式对挥发物成分变化的影响

IF 1.2 4区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY Ciencia E Agrotecnologia Pub Date : 2023-07-17 DOI:10.1590/1413-7054202347002223
Y. Şavşatlı
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引用次数: 0

摘要

摘要:紫锥菊(Serapias vomeracea)是兰科一种具有经济价值的植物。特别是,它的块茎被当作热饮食用。过去的研究主要集中在这种兰花的空中部分的挥发性成分。本研究首次对具有较高商业价值的蛇尾草块茎中的挥发性化合物进行了研究。此外,我们还确定了采收时间和干燥方式对挥发性化合物分布的影响。在2022年5月17日和2022年6月6日两天收获块茎,并进行四种不同的干燥条件(遮荫干燥、烘箱干燥、煮沸后遮荫干燥和冻干机干燥)。采用固相微萃取(SPME)法制备样品提取物,采用气相色谱-质谱联用技术对样品进行分析。总共鉴定出22种挥发性化合物:3种酯、3种醛、3种醇、3种萜烯、3种烷烃、3种羧酸、1种酚、1种酮、1种内酯和1种呋喃。结果表明,对甲酚为主要化合物。在收获和随后的干燥过程中,一些化合物丢失,一些新的化合物形成。此外,在冻干法中,收获时间对挥发性化合物的影响相当有限。聚类分析结果表明,采收时间和干燥时间的组合有效地影响了沙睡粉中挥发性化合物的分布。
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Identification of volatile compounds in salep (Serapias vomeracea) tubers and effects of harvest time and drying method on composition variation
ABSTRACT Serapias vomeracea is an economically valuable plant belonging to the Orchidaceae family; particularly, its tubers are consumed as hot drinks. Past studies on S. vomeracea have focused on volatile components only in the aerial parts of this orchid. This study is the first to investigate the volatile compounds present in S. vomeracea tubers, which have a high commercial value. Additionally, we determined the effect of harvest time and drying method on the volatile compound profile. The tubers were harvested on two different days (May 17, 2022, and June 6, 2022) and subjected to four different drying conditions (shade drying, oven drying, shade drying after boiling, and lyophilizer drying). To determine the volatile compound profile, sample extracts were prepared by solid-phase microextraction (SPME) and analyzed by gas chromatography-mass spectrometry. Overall, 22 volatile compounds were identified: 3 esters, 3 aldehydes, 3 alcohols, 3 terpenes, 3 alkanes, 3 carboxylic acids, 1 phenol, 1 ketone, 1 lactone, and 1 furan. The results revealed that p-cresol was the main compound. During harvesting and subsequent drying, some compounds were lost, and some new compounds were formed. Moreover, harvest time had quite limited effects on volatile compounds in the lyophilizer method. Cluster analysis revealed that the combination of harvest time and drying was effective in the distribution of volatile compounds in salep powder.
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来源期刊
Ciencia E Agrotecnologia
Ciencia E Agrotecnologia 农林科学-农业综合
CiteScore
2.30
自引率
9.10%
发文量
19
审稿时长
6-12 weeks
期刊介绍: A Ciência e Agrotecnologia, editada a cada 2 meses pela Editora da Universidade Federal de Lavras (UFLA), publica artigos científicos de interesse agropecuário elaborados por membros da comunidade científica nacional e internacional. A revista é distribuída em âmbito nacional e internacional para bibliotecas de Faculdades, Universidades e Instituições de Pesquisa.
期刊最新文献
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