A review on tea quality and safety using emerging parameters

Bhargava, Anuja; Bansal, Atul; Goyal, Vishal; Bansal, Pooja

doi:10.1007/s11694-021-01232-x

Cited by 9 publications

(7 citation statements)

References 164 publications

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“…The yield was the basic of tea tree planting and the quality was the guarantee of economic benefits. The improvement of tea quality was of great significance for the improvement of tea economic benefits (Hazra et al, 2018;Bhargava et al, 2022). Theanine, caffeine and polyphenols were secondary metabolites of tea tree, and were important quality components that constituted the taste and aroma characteristics.…”

Section: Effect Of Fertilization Treatment On Tea Qualitymentioning

confidence: 99%

“…The yield was the basis of tea planting, and the quality was the guarantee of economic benefits. The improvement of tea quality was of great significance to the improvement of tea economic benefits (Hazra et al, 2018;Bhargava et al, 2022). The heavy use of chemical fertilizers has caused soil acidification in tea plantations, which has led to a decline in the yield and quality of tea trees.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of soil acidification in tea plantations by long-term use of organic fertilizers and its effect on tea yield and quality

Wang

et al. 2022

Front. Plant Sci.

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Soil acidification in tea plantation seriously reduced the yield and quality of tea. It was an effective method to use organic fertilizer for acidified soil remediation to ensure tea yield and quality. In this study, different fertilizers were used to treat the acidified tea plantation soils for 4 consecutive years to analyze the remediation effect of different fertilizers on acidified soil and their effects on tea yield and quality. The results showed that during the period of 2017-2021, the soil pH value of tea plantation (S1) with long-term use of chemical fertilizer decreased continuously, from 3.07 to 2.82. In the tea plantation (S2), the soil pH value was stable between 4.26 and 4.65 in the combination of organic fertilizer and chemical fertilizer for a long time. The tea plantation (S3) with long-term use of organic fertilizer has a stable soil pH value between 5.13 and 5.33, which is most suitable for the growth of tea trees. The analysis results of tea yield and quality indicators (tea polyphenols, theanine, amino acids, caffeine, catechin components) showed that after long-term use of chemical fertilizer in S1 tea plantation, soil pH value decreased continuously, soil acidification intensified, tea tree growth was hindered, and tea yield and quality decreased continuously. S2 tea plantation used some organic fertilizer in combination with chemical fertilizer for a long time, the soil pH value gradually improved, soil acidification weakened, and tea yield and quality improved steadily. After long-term use of organic fertilizer in S3 tea plantation, soil acidification was significantly improved, which was conducive to the normal growth of tea trees and the yield and quality of tea reached the maximum. The results of interaction analysis showed that the long-term use of chemical fertilizer had a negative effect on the growth of tea trees, and the combination of organic fertilizer and chemical fertilizer improved the growth of tea trees to some extent, but the effect was poor, while the long-term use of organic fertilizer was the most beneficial to the growth of tea trees and most conducive to ensuring the yield and quality of tea. This study provides important practical significance for the remediation and fertilizer regulation of acidified tea plantation soils. In the process of field experiment, climate is a variable factor, and attention should be paid to the effect of climate change on fertilization efficiency in subsequent experiment.

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Section: Effect Of Fertilization Treatment On Tea Qualitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improvement of soil acidification in tea plantations by long-term use of organic fertilizers and its effect on tea yield and quality

Wang

et al. 2022

Front. Plant Sci.

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“…The economic benefit of tea tree is usually evaluated comprehensively by the yield and quality of tea. Yield is the basis of economic benefit, quality is the enhancement of economic benefit, and improving tea quality on the basis of guaranteeing the yield is the embodiment of the maximizing the economic benefit of tea [ 24 , 25 ]. Tea quality was usually evaluated by the content of inclusions in tea leaves [ 26 ].…”

Section: Resultsmentioning

confidence: 99%

Effects of Long-Term Use of Organic Fertilizer with Different Dosages on Soil Improvement, Nitrogen Transformation, Tea Yield and Quality in Acidified Tea Plantations

Wang

Kang

et al. 2022

Plants

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In this study, sheep manure fertilizers with different dosages were used for five consecutive years to treat acidified tea plantation soils, and the effects of sheep manure fertilizer on soil pH value, nitrogen transformation, and tea yield and quality were analyzed. The results showed that soil pH value showed an increasing trend after a continuous use of sheep manure fertilizer from 2018 to 2022. After the use of low dosage of sheep manure fertilizer (6 t/hm2–15 t/hm2), tea yield, the content of tea quality indicators (tea polyphenols, theanine, amino acid, and caffeine) and soil ammonium nitrogen content, ammoniating bacteria number, ammoniating intensity, urease activity and protease activity showed increasing trends and were significantly and positively correlated to soil pH value, while the related indexes showed increasing and then decreasing trends after the use of high dosage of sheep manure fertilizer (18 t/hm2). Secondly, the nitrate nitrogen content, nitrifying bacteria number, nitrifying intensity, nitrate reductase activity, and nitrite reductase activity showed decreasing trends after the use of low dosage of sheep manure fertilizer and showed significant negative correlations with soil pH value, while the related indexes showed decreasing trends after the use of high dosage of sheep manure and then increased. The results of principal component and interaction analysis showed that the effects of sheep manure fertilizers with different dosages on tea yield and quality were mainly based on the transformation ability of ammonium nitrogen and nitrate nitrogen in the soil, and the strong transformation ability of ammonium nitrogen and the high ammonium nitrogen content in the soil were conducive to the improvement of tea yield and quality, and vice versa. The results of topsis comprehensive evaluation and analysis showed that the most influential effect on the fertilization effect was the ammonium nitrogen content in the soil and long-term treatment with 15 t/hm2 of sheep manure fertilizer had the highest proximity to the best fertilization effect. This study provided an important practical basis for the remediation and fertilizer management in acidified tea plantation soils.

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“…Tea farming significantly boosts the economies of many countries, with the quality of tea leaves shaped by their age and other factors, directly influencing their taste, aroma, and value [ 2 ]. Traditionally, the assessment of tea leaf quality has relied on manual inspection, a method fraught with inefficiencies and human error.…”

Section: Introductionmentioning

confidence: 99%

Tea leaf age quality: Age-stratified tea leaf quality classification dataset

Kabir,

Hafiz,

Bandyopadhyaa

et al. 2024

Data in Brief

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A review on tea quality and safety using emerging parameters

Cited by 9 publications

References 164 publications

Improvement of soil acidification in tea plantations by long-term use of organic fertilizers and its effect on tea yield and quality

Improvement of soil acidification in tea plantations by long-term use of organic fertilizers and its effect on tea yield and quality

Effects of Long-Term Use of Organic Fertilizer with Different Dosages on Soil Improvement, Nitrogen Transformation, Tea Yield and Quality in Acidified Tea Plantations

Tea leaf age quality: Age-stratified tea leaf quality classification dataset

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