Variation in productivity and essential oil composition of aromatic grasses grown in mid-hill conditions of the Western Himalayas

IF 2.4 3区农林科学 Q1 Agricultural and Biological Sciences

Horticulture Environment and Biotechnology Pub Date : 2024-04-19 DOI:10.1007/s13580-024-00610-w

Saizal Jamwal, Meghna Thakur, Swati Walia, Rakesh Kumar

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Abstract

Improper handling degrades the quality of the produce and causes economic losses. Thus, to study the effect of post-harvest handling on essential oil content and chemical constitutions, different experiments were conducted on two aromatic grasses. The first experiment was conducted on lemongrass crop using three accessions (A1, A2, and A3) and three storage times (0, 24, and 48 h), the second experiment was conducted on palmarosa crop with five harvesting dates (12 October, 27 October, 10 November, 25 November, and 10 December) and three storage time (0, 24 and 48 h). The essential oil percentage of the major compound of lemongrass (citral) was recorded significantly higher in accession A1, while 46.49% higher EO content was recorded when processing the biomass after 48 h of storage as compared to 0 h. Significantly higher (93.84%) increase in essential oil content of palmarosa was recorded on the 25 November harvesting date, while 112.69% higher EO content was recorded for storage of 48 h than 0 h. The major chemical compound geraniol attained the highest percentage (88%) on the 10 December harvesting date and storage time of 48 h recorded 85.78% higher EO content than 0 h. The degradation of constituents, rearrangement, and disappearance results in variations in essential oil composition. Harvesting at proper maturity and quality stages with longer storage time of the plant resulted in quality essential oil when compared to early harvest and shorter storage time in both aromatic plants.

Graphical abstract

Harvesting at proper stages with longer storage time resulted in quality EO of aromatic grasses

Abstract Image

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西喜马拉雅山半山条件下生长的芳香草的产量和精油成分的变化

处理不当会降低产品的质量，造成经济损失。因此，为了研究收获后处理对精油含量和化学成分的影响，我们对两种芳香植物进行了不同的实验。第一项实验在柠檬草作物上进行，使用了三个品种（A1、A2 和 A3）和三个储存时间（0、24 和 48 小时）；第二项实验在香茅作物上进行，使用了五个收获日期（10 月 12 日、10 月 27 日、11 月 10 日、11 月 25 日和 12 月 10 日）和三个储存时间（0、24 和 48 小时）。记录显示，香茅主要化合物（柠檬醛）的精油百分比在品种 A1 中明显较高，而与 0 小时相比，在贮藏 48 小时后处理生物质时记录到的环氧乙烷含量高出 46.49%。主要化学成分香叶醇在 12 月 10 日的采收率最高（88%），储存 48 小时后，香叶醇含量比 0 小时高出 85.78%。与早收和较短的贮藏时间相比，在植物的适当成熟期和优质期收获并延长贮藏时间可获得优质精油。

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来源期刊

Horticulture Environment and Biotechnology Agricultural and Biological Sciences-Horticulture

CiteScore

4.30

自引率

4.20%

发文量

审稿时长

6 months

期刊介绍： Horticulture, Environment, and Biotechnology (HEB) is the official journal of the Korean Society for Horticultural Science, was launched in 1965 as the "Journal of Korean Society for Horticultural Science". HEB is an international journal, published in English, bimonthly on the last day of even number months, and indexed in Biosys Preview, SCIE, and CABI. The journal is devoted for the publication of original research papers and review articles related to vegetables, fruits, ornamental and herbal plants, and covers all aspects of physiology, molecular biology, biotechnology, protected cultivation, postharvest technology, and research in plants related to environment.