Evidence map›Paper›PMID 36429218›Full record

ArticleFoods (Basel, Switzerland)2022

Adsorption Behavior of the L-Theanine onto Cation Exchange Resin ZGSPC106Na and D001SD.

Yusi Yang, Zhanbo Dong, Yongkang Wang, Fengyi Xiao, Jinliang Yang, Dong Zhao, Jianhui Ye, Xinqiang Zheng, Yuerong Liang, Jianliang Lu

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Foods (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.1field-weighted citation impact, top 50% of its field
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

0 citing papers in PubMed, 1 citations in OpenAlex.

No citing paper in PubMed yet.

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

10 authors at 2 institutions in 1 country.

Yusi YangTea Research Institute, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
Zhanbo DongTea Research Institute, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
Yongkang WangTea Research Institute, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
Fengyi XiaoTea Research Institute, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
Jinliang YangWulongtan Tea Industry Co., Ltd. of Ningbo City, Ningbo 315166, China.
Dong ZhaoTea Research Institute, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
Jianhui YeTea Research Institute, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
Xinqiang ZhengTea Research Institute, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.ORCID 0000-0003-0476-8837
Yuerong LiangTea Research Institute, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.ORCID 0000-0001-7889-1251
Jianliang LuTea Research Institute, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
Tea Research Institute · CNWenzhou Municipal Sci-Tech Bureau · CN

Funding

National Natural Science Foundation of China No. 31770728Zhejiang Science and Technology Major Program on Agricultural New Variety Breeding-Tea Plant No. 2021C02067-6
6 · The paper itself

Abstract

Adsorption is an important technology for the separation of different tea components. The adsorption behavior of L-theanine onto adsorbents was comprehensively studied in this paper. Among tested adsorbents, cation exchange resin ZGSPC106Na and D001SD were suitable for separating L-theanine, PVPP and PA-6 for catechins and macroporous resin HPD-400 for caffeine. Adsorption of L-theanine onto the cation resins was significantly influenced by the acidity, contact time and temperature. The adsorption behavior could be described by the pseudo-second-order rate equation and fitted to Langmuir and Freundlich models. ZGSPC106Na exhibited higher adsorption capacity, while D001SD showed higher adsorption selectivity. These might be attributed to the distinctive structure of the two resins and different ionization of the adsorbates. A method for simultaneous preparation of decaffeinated polyphenols, caffeine-enriched extract and decaffeinated L-theanine was established through successive separation on the columns fulfilled with PA-6, HPD-400 and D001SD, respectively.

Indexed as

adsorbentadsorption capacityadsorption selectivityamino aicddecaffeinationseparation of tea components

Identifiers

PMID36429218
PMCPMC9689365
OpenAlexW4309013534

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.