The present study aimed to chemically characterize 31 accessions and seven cultivars of basil. The percentage composition of the essential oils of the accessions and cultivars was based on the 14 most abundant constituents: 1,8-cineole, linalool, methyl chavicol, neral, nerol, geraniol, geranial, methyl cinnamate, β-bourbonene, methyl eugenol, α-trans-bergamotene, germacrene-D, epi-α-cadinol, and δ-cadinene. The genetic materials were classified into eight clusters according to the chemical composition of the essential oils: Cluster 1--mostly linalool and 1,8-cineole; Cluster 2--mostly linalool, geraniol, and α-trans-bergamotene; Cluster 3--mostly linalool, methyl chavicol, methyl cinnamate, and β-bourbonene; Cluster 4--mostly linalool, methyl chavicol, epi-α-cadinol, and α-trans-bergamotene; Cluster 5--mainly linalool, methyl eugenol, α-trans-bergamotene, and epi-α-cadinol; Cluster 6--mainly linalool, geraniol, and epi-α-cadinol; Cluster 7--mostly linalool and methyl chavicol; Cluster 8--mainly geranial and neral.
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http://dx.doi.org/10.1155/2015/352638 | DOI Listing |
Food Chem
December 2024
Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China; Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing Technology and Business University, Beijing 100048, China. Electronic address:
To clarify the effects of pervaporation and distillation on aroma profiles, the Sensomics approach investigated the aroma characteristics and key aroma compounds of Cabernet Sauvignon (CS) and Ugni Blanc (UB) grape spirits produced by pervaporation (UB-P, CS-P) and distillation (UB-D, CS-D). The results indicated that pervaporated grape spirits exhibited stronger floral and fruity aromas, while distilled grape spirits were characterized by more pronounced cooked apple and toasty aromas. Consumers preferred products with intense floral and fruity aromas and weaker cooked apple note.
View Article and Find Full Text PDFFront Nutr
November 2024
Department of Food Science and Engineering, Moutai Institute, Renhuai, China.
Background: As albino tea under the geographical protection of agricultural products, Zheng'an Bai tea is not only rich in amino acids, polyphenols and other beneficial components for the human body, but also its leaf color will turn green as the temperature gradually rises, thus causing changes in the quality characteristics of tea leaves. However, these changing characteristics have not yet been revealed.
Methods: In-depth quality analysis was carried out on the fresh leaves of Zheng'an Bai tea at four different developmental stages and four samples from the processing stage through extensive targeted metabolomics and SPME-GC-MS analysis.
Anal Methods
December 2024
Department of Experimental Physics, Comenius University, Mlynská dolina F2, 84248 Bratislava, Slovakia.
This study presents a novel rapid analytical method for the detection of volatile organic compounds (VOCs) emitted from blueberry leaves using the Tenax adsorbent followed by separation using a multicapillary column (MCC) and Ion Mobility Spectrometry (IMS) detection. The emitted VOCs including caryophyllene, benzene acetonitrile, linalool, ocimene, and methyl salicylate initiated by different stress factors including mechanical damage (punching), herbivore attack (aphids) and methyl jasmonate (MeJA) spraying were detected and quantified. Limits of Detection (LODs) for the VOCs were determined in the range of 8 to 33 ng.
View Article and Find Full Text PDFPhysiol Plant
December 2024
Chair of Phytopathology, TUM School of Life Sciences, Technical University of Munich, Freising, Germany.
The barley powdery mildew disease caused by the biotrophic fungus Blumeria hordei (Bh) poses enormous risks to crop production due to yield and quality losses. Plants and fungi can produce and release volatile organic compounds (VOCs) that serve as signals in plant communication and defense response to protect themselves. The present study aims to identify VOCs released by barley (Hordeum vulgare) during Bh-infection and to decipher VOC-induced disease resistance in receiver plants.
View Article and Find Full Text PDFFood Res Int
December 2024
College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China; Guangxi Field Scientific Observation and Research Station for Tea Resources, Guilin 541004, China. Electronic address:
This study comprehensively investigated the impact of different storage times on the quality and metabolomic profiles of Liupao tea (LPT). The sensory evaluations revealed that both Maosheng (MS) and Tianyu (TY) teas exhibited a browning of tea appearance and brightening of tea infusion during storage. The taste evolved from bitterness and astringency to purity and briskness, while the aroma shifted from stuffy to woody and aged aromas.
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