Rapid identification of green tea varieties based on FT-NIR spectroscopy and LDA/QR

Food Science and Technology, Journal Year: 2022, Volume and Issue: 42

Published: Jan. 1, 2022

There are many substances beneficial to human body in tea. In this study, we put forward innovative strategies quickly and harmlessly identify Chinese green tea varieties. Near-infrared (NIR) spectrometer was used collect NIR spectral data of samples, the were preprocessed by Savitzky-Golay (SG) filter eliminate noise data. Three feature extraction algorithms: principal component analysis (PCA) combined with linear discriminant (LDA), LDA/QR, generalize singular value decomposition (GSVD) performed decrease dimension compress Finally, k-nearest neighbor (kNN) classifier utilized classify samples according spectra samples. PCA LDA, GSVD LDA/QR had classification accuracy rates 94.19%, 91.86% 98.84%, respectively. So, showed highest We believe that combination spectroscopy algorithms can types This method may have potential other varieties food.

Language: Английский

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Achievements and prospects of QTL mapping and beneficial genes and alleles mining for important quality and agronomic traits in tea plant (<i>Camellia sinensis</i>)

Beverage Plant Research, Journal Year: 2023, Volume and Issue: 3(1), P. 0 - 0

Published: Jan. 1, 2023

Tea is one of the most significant non-alcoholic beverages globally due to its unique secondary metabolites. Therefore, it essential apply molecular technologies in conjunction with various phenotypes for candidate genes mining and identification, regulating synthesis degradation metabolites contributing tea quality, order enhance effectively breeding. To date, there are genetic resources numerous high-density maps owing progress development plants genome. In this review, we comprehensively reflected identification quality-related using quantitative trait loci (QTL) mapping genome-wide association study (GWAS) recent years. Functional verification promotion these were also discussed.

Language: Английский

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Identification of phenolic compounds from fermented Moringa oleifera Lam. leaf supplemented with Fuzhuan brick tea and their volatile composition and anti‐obesity activity

Journal of Food Science, Journal Year: 2024, Volume and Issue: 89(5), P. 3094 - 3109

Published: April 17, 2024

Abstract As a nutritious plant with valuable potential, the Moringa oleifera Lam. (MOL) leaf addition on Fuzhuan brick tea (FBT) for co‐fermentation (MOL‐FBT) was an industry innovation and new route to make full use of MOL leaf. After optimization extraction conditions, best conditions polyphenols method from MOL‐FBT (MFP) were 60°C 40 min (1:80, V/W) using response surface methodology. A total 30 phenolics identified quantified. Most increased after adding compared FBT polyphenols. In particular, caffeic acids found only in MFP. Moreover, MFP received high value taste, aroma, color. total, 62 volatile flavor compounds, consisting 3 acids, 5 alcohols, 15 aldehydes, 4 esters, 20 hydrocarbons, 10 ketones, others, addition, inhibited 3T3‐L1 preadipocyte differentiation dose‐dependent manner decreased lipid accumulation via peroxisome proliferator‐activated receptor gamma (PPARγ)/CCAAT/enhancer binding protein alpha (CEBPα)/cluster 36 (CD36) axis induced brown adipocyte‐like phenotype. vivo experiments further conducted confirm vitro results. regulated accumulation, glucose/insulin tolerance, improved liver kidney function, secretion pro‐inflammatory factors by PPARγ/CEBPα/CD36 alleviated inflammation fat fructose diet‐induced obese mice. summary, possesses high‐quality properties anti‐obesity effects, as well great potential be used novel functional food product.

Language: Английский

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Pruned tea biomass plays a significant role in functional food production: A review on characterization and comprehensive utilization of abandon‐plucked fresh tea leaves

Comprehensive Reviews in Food Science and Food Safety, Journal Year: 2024, Volume and Issue: 23(4)

Published: July 1, 2024

Abstract Tea is the second largest nonalcoholic beverage in world due to its characteristic flavor and well‐known functional properties vitro vivo. Global tea production reaches 6.397 million tons 2022 continues rise. Fresh leaves are mainly harvested spring, whereas thousands of discarded summer autumn. Herein, pruned biomass refers abandon‐plucked being non‐plucking period, especially At present, no relevant concluding remarks have been made on this undervalued biomass. This review summarizes seasonal differences intrinsic metabolites pays special attention most critical bioactive compounds, including polyphenols, theanine, caffeine. Additionally, meaningful profound methods transform fresh into high‐value products reviewed. In autumn, plants accumulate much more phenols than epigallocatechin gallate (galloyl catechin), anthocyanins (catechin derivatives), proanthocyanidins (polymerized catechins). Vigorous carbon metabolism induced by high light intensity temperature autumn also accumulates carbohydrates, such as soluble sugars cellulose. The characteristics make them not ideal raw materials for tea, but suitable novel like beverages food ingredients using traditional or hybrid technologies enzymatic transformation, microbial fermentation, formula screening, extraction, with abundant polyphenols serving prominent contributors.

Language: Английский

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Transcriptomic profiling reveals candidate allelopathic genes in rice responsible for interactions with barnyardgrass

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: Feb. 17, 2023

Echinochloa crus-galli (barnyardgrass) is one of the most damaging weeds in rice fields worldwide. Allelopathy has been considered a possible application for weed management. Thus understanding its molecular mechanisms important production. This study generated transcriptomes from under mono- and co-culture with barnyardgrass at two-time points to identify candidate genes controlling allelopathic interactions between barnyardgrass. A total 5,684 differentially expressed (DEGs) were detected, amongst which 388 transcription factors. These DEGs include associated momilactone phenolic acid biosynthesis, play critical roles allelopathy. Additionally, we found significantly more 3 hours than days, suggesting quick response rice. Up-regulated involve diverse biological processes, such as stimulus pathways related phenylpropanoid secondary metabolites biosynthesis. Down-regulated involved developmental indicating balance growth stress allelopathy Comparison shows few common genes, different underlying interaction these two species. Our results offer an basis identifying responsible contribute valuable resources revealing mechanisms.

Language: Английский

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Role of polyphenolic compounds and their nanoformulations: a comprehensive review on cross-talk between chronic kidney and cardiovascular diseases

Naunyn-Schmiedeberg s Archives of Pharmacology, Journal Year: 2023, Volume and Issue: 396(5), P. 901 - 924

Published: Feb. 24, 2023

Language: Английский

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Effects of plant growth regulators on the contents of rutin, hyperoside and quercetin in Hypericum attenuatum Choisy

PLoS ONE, Journal Year: 2023, Volume and Issue: 18(5), P. e0285134 - e0285134

Published: May 3, 2023

To explore the accumulation of rutin, hyperoside and quercetin in Hypericum attenuatum Choisy under treatment with different plant growth regulators, 100 mg/L, 200 mg/L 300 cycocel, mepiquat chloride 1 2 3 naphthalene acetic acid were foliage sprayed on plants at early stage. We sampled determined important flavonoid contents flowering The results showed that three regulators had effects leaves, stems flowers After spraying stage, rutin increased by approximately 60.33%, 223.85% 192.02%, respectively (P < 0.05). Spraying leaves 7.77% 12.87%, significantly 95.62% 47.85%, Therefore, content, content Choisy. In conclusion, flavonoids was regulated regulators.

Language: Английский

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Application of Multi-Perspectives in Tea Breeding and the Main Directions

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(16), P. 12643 - 12643

Published: Aug. 10, 2023

Tea plants are an economically important crop and conducting research on tea breeding contributes to enhancing the yield quality of leaves as well traits that satisfy requirements public. This study reviews current status germplasm resources their utilization, which has provided genetic material for application multi-omics, including genomics transcriptomics in breeding. Various molecular markers were designed based available approaches direction high yield, resistance proposed. Additionally, future single-cellomics, pangenomics, plant–microbe interactions epigenetics proposed references. aims provide inspiration guidance advancing development plants, providing implications other crops.

Language: Английский

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Metabolomic and Transcriptomic Insights into Anthocyanin Biosynthesis in ‘Ziyan’ Tea Plants under Varied Photoperiod and Temperature Conditions

Agronomy, Journal Year: 2023, Volume and Issue: 14(1), P. 56 - 56

Published: Dec. 25, 2023

(1) Background: Anthocyanins, the main pigments in plants, are influenced by both temperature and photoperiod. However, specific mechanisms underlying anthocyanin accumulation tea plants response to these two environmental factors remain unclear. (2) Methods: This study subjected potted ‘Ziyan’ four types of day-length treatments (HL (28 °C, 16 h), HS 8 LL (18 LS h)), then conducted targeted metabolomic transcriptomic analyses samples. (3) Results: Long photoperiods low temperatures promoted new shoots plants. Furthermore, enhancing effects on additive exhibit interactive effects. Through a combined analysis metabolomics transcriptomics, five key differentially accumulated metabolites (DAMs) twenty-two expressed genes (DEGs) were identified, latter being found participate regulation biosynthesis pathways under varying light conditions. In summary, extended primarily increase content levels ten metabolites, including cyanidin naringenin-7-O-glucoside, upregulating CHS, F3H, ANS genes. contrast, enhance synthesis seven anthocyanins, cyanidin-3-O-rutinoside, UFGT (4) Conclusions: Collectively, differences expression ANS, might be responsible for plants’ purple shoot coloration, providing important data towards discovery candidate molecular bases controlling leaves varied temperatures.

Language: Английский

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Achievements and Prospects of QTL Mapping and Beneficial Gene and Allele Mining for Important Quality and Agronomic Traits in Tea Plant (Camellia sinensis)

Concepts and strategies in plant sciences, Journal Year: 2024, Volume and Issue: unknown, P. 141 - 178

Published: Jan. 1, 2024

Language: Английский

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