Diversity of black cumin genotypes and their classification based on functional properties

IF 1.4 4区生物学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Biochemical Systematics and Ecology Pub Date : 2024-02-26 DOI:10.1016/j.bse.2024.104802

İsa Telci , Temel Özek , Fatih Gül , Süleyman Yur , Gülmira Özek , İbrahim Demirtaş , Erdinç Günay , Hasan Aslancan , Oya Kacar

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Abstract

This study aims to examine the phenological, morphological, and chemical diversity of black cumin genotypes to identify those most suitable for food and medicinal use. Thymoquinone content, together with fatty acid composition, were studied in seed oils obtained by cold pressing. Multivariate analysis of the results revealed significant interspecies variation between the genotypes of Nigella damascena and N. sativa. Furthermore, N. sativa genotypes are clustered into two intraspecific groups, largely differentiable on the basis of earliness or lateness of the genotype, seed length and size, thymoquinone content and harvest index. In particular, the thymoquinone content in the samples varied between 0.5% and 4.9%. The fatty acid composition, whose most abundant constituents were linoleic acid, oleic acid and palmitic acid, did not show a significant difference between the intraspecific groups of N. sativa. Genotypes with thymoquinone content above 4% were selected for medicinal use and classified as “medicinal black cumin”, whereas those with low levels of thymoquinone were selected for use as culinary spices and baked goods, therefore classified as “spice black cumin".

The acquired data brings new insights for revising standards and monographs tailored to the intended use of each genotype.

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黑小茴香基因型的多样性及其基于功能特性的分类

本研究旨在考察黑小茴香基因型的表型、形态和化学多样性，以确定最适合食用和药用的基因型。研究了冷榨种子油中的胸腺醌含量和脂肪酸组成。多元分析结果显示，大马士革黑小茴香和黑小茴香基因型之间存在显著的种间差异。此外，N. sativa 基因型被分为两个种内组，主要根据基因型的早熟或晚熟、种子长度和大小、胸腺醌含量和收获指数进行区分。特别是，样本中胸腺醌的含量在 0.5% 到 4.9% 之间。脂肪酸组成中最丰富的成分是亚油酸、油酸和棕榈酸，但在荠菜的种内组间并无显著差异。胸腺醌含量高于 4% 的基因型被选为药用黑孜然，归类为 "药用黑孜然"，而胸腺醌含量低的基因型被选为烹饪香料和烘焙食品，归类为 "香料黑孜然"。

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来源期刊

Biochemical Systematics and Ecology 生物-进化生物学

CiteScore

3.00

自引率

12.50%

发文量

147

审稿时长

43 days

期刊介绍： Biochemical Systematics and Ecology is devoted to the publication of original papers and reviews, both submitted and invited, in two subject areas: I) the application of biochemistry to problems relating to systematic biology of organisms (biochemical systematics); II) the role of biochemistry in interactions between organisms or between an organism and its environment (biochemical ecology). In the Biochemical Systematics subject area, comparative studies of the distribution of (secondary) metabolites within a wider taxon (e.g. genus or family) are welcome. Comparative studies, encompassing multiple accessions of each of the taxa within their distribution are particularly encouraged. Welcome are also studies combining classical chemosystematic studies (such as comparative HPLC-MS or GC-MS investigations) with (macro-) molecular phylogenetic studies. Studies that involve the comparative use of compounds to help differentiate among species such as adulterants or substitutes that illustrate the applied use of chemosystematics are welcome. In contrast, studies solely employing macromolecular phylogenetic techniques (gene sequences, RAPD studies etc.) will be considered out of scope. Discouraged are manuscripts that report known or new compounds from a single source taxon without addressing a systematic hypothesis. Also considered out of scope are studies using outdated and hard to reproduce macromolecular techniques such as RAPDs in combination with standard chemosystematic techniques such as GC-FID and GC-MS.