Evidence map›Paper›PMID 31780730›Full record

ArticleScientific reports2019

Effects of enzymatic browning reaction on the usability of tobacco leaves and identification of components of reaction products.

Yanjie Chen, Junfei Zhou, Ke Ren, Congming Zou, Junjun Liu, Guangmin Yao, Jianshen He, Gaokun Zhao, Wei Huang, Binbin Hu and 3 more

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed.

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  10. Isolation and evaluation of aFrontiers in bioengineering and biotechnology · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Yanjie ChenYunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
Junfei ZhouSchool of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Hubei, 430030, China.
Ke RenYunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
Congming ZouYunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China. zoucongmingzcm@163.com.
Junjun LiuSchool of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Hubei, 430030, China.
Guangmin YaoSchool of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Hubei, 430030, China.
Jianshen HeYunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
Gaokun ZhaoYunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
Wei HuangYunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
Binbin HuYunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
Yi ChenYunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
Kaisheng XiongYunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
Yan JinYunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The enzyme browning reaction results in grey speckles on tobacco leaves, which impairs the value and industrial usability of tobacco leaves. To demonstrate the influences of different browning degrees (BDs) of tobacco leaves on the usability of different cultivars and positions and identified structure of brown (grey) matter, we selected three flue-cured tobacco cultivars (K326, Yunyan87, and Honghuadajinyuan (Hongda)) and set four different BDs (<25%, 25% to 50%, 50% to 75%, and >75%). Indices related to: economic traits, chemical components, physical properties, and sensory quality of tobacco leaves with different cultivars were evaluated. Moreover, by utilising thin-layer chromatography and high-performance liquid chromatography, we analysed and identified the structure of the grey matter in terms of chemical composition. The experimental results show that the main component of grey speckles on tobacco leaves is 3-acetyl-6,7-dimethoxycoumarin (YC-ZJF). With the increase of BD, the amount of total sugar and reducing sugar, output value, the proportion of superior tobacco, shatter resistance index, and sensory evaluation score of the three cultivars significantly decrease, while the starch content increases significantly. The changes in protein, total nitrogen, and nicotine are insignificant with changing BD. In addition, other indices show different trends for different cultivars of flue-cured tobacco. After separation and identification of the components of grey speckled leaves, it is proved that the substance derived from grey speckles on tobacco leaves is YC-ZJF. The research is important to the study of browning mechanisms in tobacco leaves and provides corresponding targets for strategies to reduce browning thereof.

Indexed as

ChromatographyCoumarinsPigments, BiologicalPlant LeavesStarchTobacco ProductsCoumarinsPigments, BiologicalStarch

Identifiers

PMID31780730
PMCPMC6882896

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.