Evidence map›Paper›PMID 33680055›Full record

ArticleEvidence-based complementary and alternative medicine : eCAM2021

Study of Thermal Behavior of Moxa Floss Using Thermogravimetric and Pyrolysis-GC/MS Analyses.

Min Yee Lim, Xinyue Zhang, Jian Huang, Liang Liu, Yutang Liu, Baixiao Zhao, Hui Hu, Furong He, Junjie Xie, Dongsheng Qiu

Abstract read
In one paragraph

Article in Evidence-based complementary and alternative medicine : eCAM, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
–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

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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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

10 authors.

Min Yee LimInternational School, Beijing University of Chinese Medicine, Beijing 100029, China.ORCID https://orcid.org/0000-0003-3827-0420
Xinyue ZhangSchool of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China.ORCID https://orcid.org/0000-0002-3554-9402
Jian HuangDongfang Hospital, Beijing University of Chinese Medicine, Second-affiliated Hospital, Beijing 100078, China.ORCID https://orcid.org/0000-0003-2940-7034
Liang LiuChina Academy of Launch Vehicle Technology, Beijing 100076, China.ORCID https://orcid.org/0000-0002-4716-7540
Yutang LiuTobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China.ORCID https://orcid.org/0000-0002-7571-1865
Baixiao ZhaoSchool of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.ORCID https://orcid.org/0000-0002-9948-8186
Hui HuDongfang Hospital, Beijing University of Chinese Medicine, Second-affiliated Hospital, Beijing 100078, China.ORCID https://orcid.org/0000-0001-9852-7465
Furong HeSchool of Acupuncture-Moxibustion and Tuina, Fujian University of Traditional Chinese Medicine, Fujian 350122, China.ORCID https://orcid.org/0000-0003-3068-2690
Junjie XieAcupuncture Department, Xiamen Hospital, Affiliated Hospital of Beijing University of Chinese Medicine, Xiamen, China.ORCID https://orcid.org/0000-0002-1620-4281
Dongsheng QiuAcupuncture Department, Xiamen Hospital, Affiliated Hospital of Beijing University of Chinese Medicine, Xiamen, China.ORCID https://orcid.org/0000-0002-7352-9779

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Moxa floss is a type of biomass used as the main combustion material in moxibustion, a therapy that applies heat from moxa floss combustion to points or body areas for treatment. Safety concerns regarding moxa smoke have been raised in recent years. Since moxa floss is the source material in moxibustion, its thermal behavior and pyrolysis products would be related to the products formed in moxa smoke. This work aims to understand the thermal behavior of moxa floss and investigate the pyrolysis products generated from moxa floss combustion. Six commercial moxa floss samples of 3 storage years and 10 storage years, and of low, medium, and high ratios, were selected. The kinetic data from moxa floss combustion was carried out by a thermogravimetric analyzer. Pyrolysis-gas chromatography and mass spectroscopy using a gas chromatograph and mass spectrometer equipped with a pyroprobe were used to examine the pyrolysis products. Thermogravimetric profiles for all the samples were overall similar and showed a monotonic weight decrease. The range of intensive reaction temperature occurred between 150°C and 450°C, which was characterized by a major weight loss and accompanied by an exothermal degradation of the main components. The average ignition temperature for the samples of 3 and 10 storage years was 218.3°C and 222.6°C, respectively, which was lower than most herbaceous plants. The identified pyrolysis products include monocyclic aromatic hydrocarbons, polycyclic aromatic hydrocarbons, ketones, acids, and alkanes. All were of relatively low intensities of below 5% in relative abundance. No volatiles were detected in the samples of 10 storage years. The relatively low values of ignition temperature suggested that moxa floss is more combustible and can be ignited more easily than other herbaceous plants. This may explain why moxa floss has remained as the preferred material used for moxibustion over the years.

Identifiers

PMID33680055
PMCPMC7904358

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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.