Evidence map›Paper›PMID 37959661›Full record

ArticleMolecules (Basel, Switzerland)2023

Effects of Roasting Conditions on Antibacterial Properties of Vietnamese Turmeric (

Hai Thanh Nguyen, Siyuan Wu, Tomoki Ootawa, Hieu Chi Nguyen, Hong Thi Tran, Pitchaya Pothinuch, Hang Thi Thu Pham, Anh Thi Hong Do, Hao Thanh Hoang, Md Zahorul Islam and 2 more

Abstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
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

12 authors.

Hai Thanh NguyenDepartment of Plant Biotechnology, Faculty of Biotechnology, Vietnam National University of Agriculture, Trau Quy Crossing, Gia Lam District, Hanoi 131000, Vietnam.ORCID 0000-0003-0211-1196
Siyuan WuDepartment of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan.ORCID 0000-0002-5950-3433
Tomoki OotawaDepartment of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan.ORCID 0009-0000-1243-0698
Hieu Chi NguyenNational Institute for Control of Vaccines and Biologicals, Hoang Mai District, Hanoi 128100, Vietnam.
Hong Thi TranNational Institute for Control of Vaccines and Biologicals, Hoang Mai District, Hanoi 128100, Vietnam.
Pitchaya PothinuchFaculty of Food Technology, Rangsit University, 52/347 Muang-Ake Pahonyontin Road, Lak-Hok, Pathum Thani 12000, Thailand.
Hang Thi Thu PhamDepartment of Plant Biotechnology, Faculty of Biotechnology, Vietnam National University of Agriculture, Trau Quy Crossing, Gia Lam District, Hanoi 131000, Vietnam.
Anh Thi Hong DoDepartment of Plant Biotechnology, Faculty of Biotechnology, Vietnam National University of Agriculture, Trau Quy Crossing, Gia Lam District, Hanoi 131000, Vietnam.
Hao Thanh HoangDepartment of Veterinary Pharmacology, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Trau Quy Crossing, Gia Lam District, Hanoi 131000, Vietnam.
Md Zahorul IslamDepartment of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan.ORCID 0000-0003-4253-6711
Atsushi MiyamotoDepartment of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan.ORCID 0000-0002-1980-2869
Ha Thi Thanh NguyenDepartment of Veterinary Pharmacology, Joint Faculty of Veterinary Medicine Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan.ORCID 0000-0003-2059-7492

Funding

National Foundation for Science and Technology Development 09/2019/TN
6 · The paper itself

Abstract

Processing with heat treatment has been reported to alter several therapeutic effects of turmeric. In Vietnamese traditional medicine, turmeric has been long used for bacterial infections, and roasting techniques are sometimes applied with this material. However, there have been no studies investigating the effects of these thermal processes on the plant's antibacterial properties. Our study was therefore performed to examine the changes that roasting produced on this material. Slices of dried turmeric were further subjected to light-roasting (80 °C in 20 min) or dark-roasting (160 °C in 20 min) processes. Broth dilution and agar-well diffusion methods were applied to examine and compare the effects of ethanol extracts obtained from non-roasted, light-roasted and dark-roasted samples, on a set of 6 gram-positive and gram-negative bacteria. In both investigations, dark-roasted turmeric was significantly less antibacterial than non-roasted and light-roasted materials, as evident by the higher values of minimum inhibitory concentrations and the smaller diameters of induced inhibitory zones. In addition, dark-roasting was also found to clearly reduce curcumin contents, total polyphenol values and antioxidant activities of the extracts. These results suggest that non-roasting or light-roasting might be more suitable for the processing of turmeric materials that are aimed to be applied for bacterial infections.

Indexed as

Bacterial InfectionsCurcumaAnti-Bacterial AgentsGram-Negative BacteriaGram-Positive BacteriaPlant ExtractsRhizomeAnti-Bacterial AgentsPlant Extractsantibacterial effectCurcuma longacurcuminroastingturmeric rhizome

Identifiers

PMID37959661
PMCPMC10647697

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.