Evidence map›Paper›PMID 30319839›Full record

ArticleFood science and biotechnology2018

Comparison of the main compounds in Fuding white tea infusions from various tea types.

Junxian Pan, Yulan Jiang, Yangjun Lv, Man Li, Shikang Zhang, Jun Liu, Yuejin Zhu, Haihua Zhang

Abstract read
In one paragraph

Article in Food science and biotechnology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

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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

8 authors.

Junxian PanHangzhou Tea Research Institute, CHINA COOP, Hangzhou, 310016 China.
Yulan JiangHangzhou Tea Research Institute, CHINA COOP, Hangzhou, 310016 China.
Yangjun LvHangzhou Tea Research Institute, CHINA COOP, Hangzhou, 310016 China.
Man Li3School of Food Science and Engineering, Qingdao Agricultural University, Qingdao, 266109 China.
Shikang ZhangHangzhou Tea Research Institute, CHINA COOP, Hangzhou, 310016 China.
Jun LiuHangzhou Tea Research Institute, CHINA COOP, Hangzhou, 310016 China.
Yuejin ZhuHangzhou Tea Research Institute, CHINA COOP, Hangzhou, 310016 China.
Haihua ZhangHangzhou Tea Research Institute, CHINA COOP, Hangzhou, 310016 China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this study was to compare the main components, and particularly catechins, caffeine, theanine, free amino acids, and water extracts, in Bai Hao Yin Zhen, Bai Mu Dan, and Shou Mei Fuding white tea infusions brewed at different temperatures, and their contributions to taste were estimated by dose-over-threshold value. Infusion temperature had a distinct effect on the main components extracted, and 100 °C was found to be optimal for extracting catechins and caffeine. However, the effect of temperature on theanine, free amino acids, and water extracts varied with tea type. Bai Mu Dan and Shou Mei yielded a higher content of the major compounds than did Bai Hao Yin Zhen. Thus, infusion temperature had a large effect on extracting the main compounds, and the differences in content between the three white teas presumably reflected differences in the harvest time, processing method or leaf shape.

Indexed as

CaffeineCatechinFree amino acidTheanineWater extractWhite tea

Identifiers

PMID30319839
PMCPMC6170294

What OpenQuestion holds

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Registered trials

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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.