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Summpunn P, Deh-ae N, Panpipat W, Manurakchinakorn S, Bhoopong P, Donlao N, Rawdkuen S, Shetty K, Chaijan M. Nutritional Profiles of Yoom Noon Rice from Royal Initiative of Southern Thailand: A Comparison of White Rice, Brown Rice, and Germinated Brown Rice. Foods 2023; 12:2952. [PMID: 37569220 PMCID: PMC10418706 DOI: 10.3390/foods12152952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
For long-term food sustainability and security, it is crucial to recognize and preserve Indigenous rice varieties and their diversity. Yoom Noon is one of the non-glutinous rice (Oryza sativa L.) varieties being conserved as part of the Phanang Basin Area Development Project, which is administered by the Royal Initiative of Nakhon Si Thammarat in Southern Thailand. The goal of this research was to compare the nutritional profiles of Yoom Noon white rice, brown rice, and germinated brown rice. The results indicated that carbohydrate content was found to be the most plentiful macronutrient in all processed Yoom Noon rice types, accounting for 67.1 to 81.5% of the total. White rice had the highest carbohydrate content (p < 0.05), followed by brown rice and germinated brown rice. Brown rice had more protein and fat than white rice (p < 0.05). The maximum protein, dietary fiber, and ash content were found in germinated brown rice, followed by brown rice and white rice (p < 0.05). White rice had the highest amylose content, around 24% (p < 0.05), followed by brown rice (22%), and germinated brown rice (20%). Mg levels in all white, brown, and germinated brown rice ranged from 6.59 to 10.59 mg/100 g, which was shown to be the highest among the minerals studied (p < 0.05). Zn (4.10-6.18 mg/100 g) was the second most abundant mineral, followed by Fe (3.45-4.92 mg/100 g), K (2.61-3.81 mg/100 g), Mn (1.20-4.48 mg/100 g), Ca (1.14-1.66 mg/100 g), and Cu (0.16-0.23 mg/100 g). Se was not found in any processed Yoom Noon rice. Overall, brown rice had the highest content of macro- and micronutrients (p < 0.05). In all processed rice, thiamin was found in the highest amount (56-85 mg/100 g), followed by pyridoxine (18-44 g/100 g) and nicotinamide (4-45 g/100 g) (p < 0.05). Riboflavin was not identified in any of the three types of processed Yoom Noon rice. Individual vitamin concentrations varied among processed rice, with germinated brown rice having the highest thiamine content by around 1.5 and 1.3 folds compared to white and brown rice, respectively. The GABA level was the highest in germinated rice (585 mg/kg), which was around three times higher than in brown rice (p < 0.05), whereas GABA was not detectable in white rice. The greatest total extractable flavonoid level was found in brown rice (495 mg rutin equivalent (RE)/100 g), followed by germinated brown rice (232 mg RE/100 g), while white rice had no detectable total extractable flavonoid. Brown rice had the highest phytic acid level (11.2 mg/100 g), which was 1.2 times higher than germinated brown rice (p < 0.05). However, phytic acid was not detected in white rice. White rice (10.25 mg/100 g) and brown rice (10.04 mg/100 g) had the highest non-significant rapidly available glucose (RAG) values, while germinated brown rice had the lowest (5.33 mg/100 g). In contrast, germinated brown rice had the highest slowly available glucose (SAG) value (9.19 mg/100 g), followed by brown rice (3.58 mg/100 g) and white rice (1.61 mg/100 g) (p < 0.05).
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Affiliation(s)
- Pijug Summpunn
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand; (P.S.); (N.D.-a.); (W.P.); (S.M.); (P.B.)
| | - Nattharika Deh-ae
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand; (P.S.); (N.D.-a.); (W.P.); (S.M.); (P.B.)
| | - Worawan Panpipat
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand; (P.S.); (N.D.-a.); (W.P.); (S.M.); (P.B.)
| | - Supranee Manurakchinakorn
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand; (P.S.); (N.D.-a.); (W.P.); (S.M.); (P.B.)
| | - Phuangthip Bhoopong
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand; (P.S.); (N.D.-a.); (W.P.); (S.M.); (P.B.)
| | - Natthawuddhi Donlao
- Food Science and Technology Program, School of Agro-Industry, Mae Fah Luang University, Chiang Rai 57100, Thailand; (N.D.); (S.R.)
| | - Saroat Rawdkuen
- Food Science and Technology Program, School of Agro-Industry, Mae Fah Luang University, Chiang Rai 57100, Thailand; (N.D.); (S.R.)
| | - Kalidas Shetty
- Global Institute of Food Security and International Agriculture (GIFSIA), North Dakota State University, 374 D Loftsgard Hall, 1360 Albrecht Blvd., Fargo, ND 58108, USA;
| | - Manat Chaijan
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand; (P.S.); (N.D.-a.); (W.P.); (S.M.); (P.B.)
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Santajit S, Bhoopong P, Kong-Ngoen T, Tunyong W, Horpet D, Paehoh-ele W, Zahedeng T, Pumirat P, Sookrung N, Hinthong W, Indrawattana N. Phenotypic and Genotypic Investigation of Carbapenem-Resistant Acinetobacter baumannii in Maharaj Nakhon Si Thammarat Hospital, Thailand. Antibiotics (Basel) 2023; 12:antibiotics12030580. [PMID: 36978447 PMCID: PMC10044629 DOI: 10.3390/antibiotics12030580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
(1) Background: Acinetobacter baumannii is well known as a causative agent of severe hospital-acquired infections, especially in intensive care units. The present study characterised the genetic traits of biofilm-forming carbapenem-resistant A. baumannii (CRAB) clinical isolates. Additionally, this study determined the prevalence of biofilm-producing A. baumannii isolates from a tertiary care hospital and investigated the association of biofilms with the distribution of biofilm-related and antibiotic resistance-associated genotypes. (2) Methods: The 995 non-duplicate A. baumannii isolates were identified, and their susceptibilities to different antibiotics were determined using the disk diffusion method. Using the modified microtiter plate assay, the CRAB isolates were investigated for their biofilm formation ability. Hemolysin and protease activities were determined. CRABs were subjected to polymerase chain reaction (PCR) assays targeting blaVIM, blaNDM, blaIMP, blaOXA-23-like, blaOXA-24-like, blaOXA-51-like, csuE and pgaB genes. Individual CRAB isolates were identified for their DNA fingerprint by repetitive element sequence-based (REP)-PCR. (3) Results: Among all A. baumannii isolates, 172 CRABs were identified. The major antibiotic resistance gene among the CRAB isolates was blaOXA-51-like (100%). Ninety-nine isolates (57.56%) were biofilm producers. The most prevalent biofilm gene was pgaB (79.65%), followed by csuE (76.74%). Evidence of virulence phenotypes revealed that all CRAB exhibited proteolytic activity; however, only four isolates (2.33%) were positive for the hemolytic-producing phenotype. REP-PCR showed that 172 CRAB isolates can be divided into 36-DNA fingerprint patterns. (4) Conclusions: The predominance of biofilm-producing CRAB isolates identified in this study is concerning. The characterisation of risk factors could aid in controlling the continual selection and spreading of the A. baumannii phenotype in hospitals, thereby improving patient care quality.
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Affiliation(s)
- Sirijan Santajit
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat 80160, Thailand
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Phuangthip Bhoopong
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Thida Kong-Ngoen
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Witawat Tunyong
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Dararat Horpet
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Wanfudhla Paehoh-ele
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Tasneem Zahedeng
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Pornpan Pumirat
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Nitat Sookrung
- Siriraj Center of Research Excellence in Allergy and Immunology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
- Biomedical Research Incubator Unit, Department of Research, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Woranich Hinthong
- Princess Srisavangavadhana College of Medicine, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Nitaya Indrawattana
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
- Correspondence: ; Tel.: +66-2-354-9100 (ext. 1598)
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Summpunn P, Panpipat W, Manurakchinakorn S, Bhoopong P, Cheong LZ, Chaijan M. Comparative Analysis of Antioxidant Compounds and Antioxidative Properties of Thai Indigenous Rice: Effects of Rice Variety and Processing Condition. Molecules 2022; 27:molecules27165180. [PMID: 36014418 PMCID: PMC9415374 DOI: 10.3390/molecules27165180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/12/2022] [Accepted: 08/12/2022] [Indexed: 11/30/2022] Open
Abstract
Indigenous southern Thai non-glutinous rice varieties Kaab Dum, Khai Mod Rin, Yar Ko, Yoom Noon, and Look Lai made under four different processing conditions, white rice, brown rice, germinated brown rice, and rice grass, were assessed for antioxidant components and in vitro antioxidative activities. According to the findings, rice’s antioxidant components and antioxidant activity were considerably impacted by both variety and processing. High levels of total extractable phenolic compounds (164−314 mg gallic acid equivalent (GAE)/kg, dry weight (dw)) and carotenoid (0.92−8.65 mg/100 g, dw) were found in all rice varieties, especially in rice grass and germinated brown rice, indicating that milling to generate white rice had an adverse effect on those components. Additionally, after germination, a higher γ-oryzanol concentration (9−14 mg/100 g, dw) was found. All rice varieties had higher ascorbic acid, phenolic compound, and carotenoid contents after sprouting. Overall, Yoom Noon rice grass had the highest total extractable phenolic content (p < 0.05). The rice grass from Yoom Noon/Look Lai/Kaab Dum had the highest ascorbic acid content (p < 0.05). The total carotenoid concentration of Look Lai rice grass was the highest, and Yoom Noon’s germinated brown rice had the highest γ-oryzanol content (p < 0.05). All rice varieties’ aqueous extracts had remarkable ABTS free radical scavenging activity, with Khai Mod Rin reaching the highest maximum value of 42.56 mmol Trolox equivalent/kg dw. Other antioxidant mechanisms, however, were quite low. Compared to germinated brown rice, brown rice, and white rice, rice grass often tended to have stronger antioxidant activity. Yar Ko rice grass was found to have the highest DPPH free radical scavenging activity (3.8 mmol Trolox equivalent/kg dw) and ferric reducing antioxidant power (FRAP) (4.6 mmol Trolox equivalent/kg dw) (p < 0.05). Khai Mod Rice grass had the most pronounced metal chelation activity (1.14 mmol EDTA equivalent/kg dw) (p < 0.05). The rice variety and processing conditions, therefore, influenced the antioxidant compounds and antioxidative properties of Thai indigenous rice. The results can be used as a guide to select the optimal rice variety and primary processing in order to satisfy the needs of farmers who want to produce rice as a functional ingredient and to promote the consumption of indigenous rice by health-conscious consumers.
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Affiliation(s)
- Pijug Summpunn
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Worawan Panpipat
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Supranee Manurakchinakorn
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Phuangthip Bhoopong
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Ling-Zhi Cheong
- Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food and Pharmaceutical Science, Ningbo University, Ningbo 315211, China
| | - Manat Chaijan
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand
- Correspondence: ; Tel.: +66-7567-2316; Fax: +66-7567-2302
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Daloh M, Wisessombat S, Pinchai N, Santajit S, Bhoopong P, Soaart A, Chueajeen K, Jitlang A, Sama‐ae I. High prevalence and genetic diversity of a single ancestral origin Azole‐resistant
Aspergillus fumigatus
in indoor environments at Walailak University, Southern Thailand. Environ Microbiol 2022; 24:4641-4651. [DOI: 10.1111/1462-2920.16154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 07/31/2022] [Indexed: 12/01/2022]
Affiliation(s)
| | - Sueptrakool Wisessombat
- Department of Medical Technology, School of Allied Health Sciences Walailak University, Thasala District, Nakhonsithammarat Thailand
- Center of Excellence Research for Melioidosis and Microorganisms (CERMM) Walailak University, Thasala District, Nakhonsithammarat Thailand
| | - Nadthanan Pinchai
- Department of Microbiology, Faculty of Medicine Siriraj Hospital Mahidol University, Bangkoknoi Bangkok Thailand
| | - Sirijan Santajit
- Department of Medical Technology, School of Allied Health Sciences Walailak University, Thasala District, Nakhonsithammarat Thailand
- Research Center in Tropical Pathobiology Walailak University, Thasala District, Nakhonsithammarat Thailand
| | - Phuangthip Bhoopong
- Department of Medical Technology, School of Allied Health Sciences Walailak University, Thasala District, Nakhonsithammarat Thailand
| | - Areeya Soaart
- Department of Medical Technology, School of Allied Health Sciences Walailak University, Thasala District, Nakhonsithammarat Thailand
| | - Kuntida Chueajeen
- Department of Medical Technology, School of Allied Health Sciences Walailak University, Thasala District, Nakhonsithammarat Thailand
| | - Anucha Jitlang
- Department of Medical Technology, School of Allied Health Sciences Walailak University, Thasala District, Nakhonsithammarat Thailand
| | - Imran Sama‐ae
- Department of Medical Technology, School of Allied Health Sciences Walailak University, Thasala District, Nakhonsithammarat Thailand
- Center of Excellence Research for Melioidosis and Microorganisms (CERMM) Walailak University, Thasala District, Nakhonsithammarat Thailand
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Bhoopong P, Chareonviriyaphap T, Sukkanon C. Excito-repellency of Myristica fragrans Houtt. and Curcuma longa L. extracts from Southern Thailand against Aedes aegypti (L.). PeerJ 2022; 10:e13357. [PMID: 35497187 PMCID: PMC9048641 DOI: 10.7717/peerj.13357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 04/08/2022] [Indexed: 01/13/2023] Open
Abstract
The development of local plant extracts as a mosquito repellent is environmentally safe, inexpensive, and easily accessible for residents. In this study, three extracts from two local plants, Myristica fragrans Houtt. (flesh and mace) and Curcuma longa L. (rhizome) from southern Thailand, were investigated for their inherent repellent activity using the excito-repellency (ER) assay system against insectary-colonized Aedes aegypti (L.) (Diptera: Culicidae). The escape responses of mosquitoes exposed to concentrations of 0.5% to 5.0% (w/v) were measured to determine the contact irritant and non-contact repellent properties of each extract. Both the flesh and mace extracts of M. fragrans had relatively limited contact irritants (28.1% and 34.6% escape) and non-contact repellent (16.7% and 18.3% escape) activities against Ae. aegypti, respectively. The C. longa rhizome extract produced higher escape responses in the non-contact (42.6% escape) and contact (41.4% escape) trials at concentrations of 5.0% and 1.0%, respectively. GC-MS analysis found diethyl malate (56.5%) and elemicin (11.7%) to be the main components of the flesh and mace extracts, respectively, while ar-turmerone (24.6%), β-turmerone (15.2%), α-turmerone (10.5%) were the primary constituents of the rhizome extract. Overall, our results indicate that both M. fragrans extracts primarily caused Ae. aegypti escape through contact irritation. For C. longa, lower concentrations (0.5% and 1.0%) exhibited contact irritancy, but higher concentrations (2.5% and 5.0%) exhibited non-contact repellency against Ae. aegypti. Although they had limited efficacy, further experiments (e.g., mixing with other plant-based compounds) could enhance the ER of both local plant extracts. Additional evaluation of these extracts against other mosquito species and the ER of their chemical components, either alone or in combination, would also be beneficial for the development of green repellents. Our findings emphasize the possibility of utilizing plant-based mosquito repellent as an alternative personal protection method for future mosquito control programs.
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Affiliation(s)
- Phuangthip Bhoopong
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Theeraphap Chareonviriyaphap
- Department of Entomology, Faculty of Agriculture, Kasetsart University, Bangkok, Thailand,Royal Society of Thailand, Bangkok, Thailand
| | - Chutipong Sukkanon
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand,Research Excellence Center for Innovation and Health Products, Walailak University, Nakhon Si Thammarat, Thailand
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Supaweera N, Chulrik W, Jansakun C, Bhoopong P, Yusakul G, Chunglok W. Therapeutic deep eutectic solvent-based microemulsion enhances anti-inflammatory efficacy of curcuminoids and aromatic-turmerone extracted from Curcuma longa L. RSC Adv 2022; 12:25912-25922. [PMID: 36199617 PMCID: PMC9465700 DOI: 10.1039/d2ra03656h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 09/03/2022] [Indexed: 11/21/2022] Open
Abstract
To diminish chemical waste and improve the delivery of Curcuma longa L. (CL) constituents, microemulsions based on hydrophobic deep eutectic solvents (HDESs) were designed as ready-to-use solvents for CL extraction. The microemulsion (ME) of the ME-23 formulation (HDES/Tween 80 : propylene glycol (1 : 1)/water, 25/70/5) displayed CL extraction yields of 1.69, 3.04, 7.36, and 1.39 wt% of bisdemethoxycurcumin, demethoxycurcumin, curcumin, and aromatic-turmerone, respectively. The ME-23 without CL chemical constituents and ME-23-based CL extract inhibited NO production with an IC50 value of 0.0136 ± 0.0023%v/v and a curcumin IC50 value of 75.2 ± 6.7 nM, respectively, and simultaneously lowered inflammatory cytokines tumor necrosis factor-α, interleukin (IL)-6, and IL-1β production in lipopolysaccharide-activated murine macrophages. Authentic curcumin in ME-23 possessed superior NO inhibitory activity, which was 103-fold more effective than curcumin prepared in the conventional solvent dimethyl sulfoxide. ME-23 was also capable of delivering curcumin into murine macrophages. After 30 days of storage in HDES and HDES-based ME, curcumin remained more than 90%. ME-23 provides advantages for CL extraction, constituent delivery, and anti-inflammatory functions that can be applied to pharmaceutical and cosmetic products. A novel HDES-based microemulsion system with anti-inflammatory activity serves as an extraction solvent of Curcuma longa L.![]()
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Affiliation(s)
- Nassareen Supaweera
- Health Sciences (International Program), College of Graduate Studies, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Wanatsanan Chulrik
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Chutima Jansakun
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Phuangthip Bhoopong
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, 80160, Thailand
- Food Technology and Innovation Research Center of Excellence, Research and Innovation Institute of Excellence, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Gorawit Yusakul
- School of Pharmacy, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Warangkana Chunglok
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, 80160, Thailand
- Food Technology and Innovation Research Center of Excellence, Research and Innovation Institute of Excellence, Walailak University, Nakhon Si Thammarat, 80160, Thailand
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Khamto N, Chaichuang L, Rithchumpon P, Phupong W, Bhoopong P, Tateing S, Pompimon W, Semakul N, Chomsri NO, Meepowpan P. Synthesis, cytotoxicity evaluation and molecular docking studies on 2',4'-dihydroxy-6'-methoxy-3',5'-dimethylchalcone derivatives. RSC Adv 2021; 11:31433-31447. [PMID: 35496846 PMCID: PMC9041536 DOI: 10.1039/d1ra05445g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/01/2021] [Indexed: 12/25/2022] Open
Abstract
2′,4′-Dihydroxy-6′-methoxy-3′,5′-dimethylchalcone (DMC, 1) was isolated from seeds of Syzygium nervosum A.Cunn. ex DC. exhibiting intriguing biological activities. Herein, thirty three DMC derivatives including 4′-O-monosubstituted-DMC (2), 7-O-acylated-4-hydroxycoumarin derivatives (3), stilbene–coumarin derivatives (4), 2′,4′-disubstituted-DMC (5), and flavanone derivatives (6), were synthesised through acylation, alkylations, and sulfonylation. These semi-synthetic DMC derivatives were evaluated for in vitro cytotoxicity against six carcinoma cell lines. It was found that most derivatives exhibited higher cytotoxicity than DMC. In particular, 4′-O-caproylated-DMC (2b) and 4′-O-methylated-DMC (2g) displayed the strongest cytotoxicity against SH-SY5Y with IC50 values of 5.20 and 7.52 μM, respectively. Additionally, 4′-O-benzylated-DMC (2h) demonstrated the strongest cytotoxicity against A-549 and FaDu with IC50 values of 9.99 and 13.98 μM, respectively. Our structure–activity relationship (SAR) highlights the importance of 2′-OH and the derivatisation pattern of 4′-OH. Furthermore, molecular docking simulation studies shed further light on how these bioactive compounds interact with cyclin-dependent kinase 2 (CDK2). Semi-synthetic DMC derivatives were synthesised and displayed biological potency against various cancer cell lines. ![]()
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Affiliation(s)
- Nopawit Khamto
- Department of Chemistry, Faculty of Science, Chiang Mai University 239 Huay Kaew Road Chiang Mai 50200 Thailand .,Graduate School, Chiang Mai University 239 Huay Kaew Road Chiang Mai 50200 Thailand
| | - Lada Chaichuang
- Department of Chemistry, Faculty of Science, Chiang Mai University 239 Huay Kaew Road Chiang Mai 50200 Thailand .,Graduate School, Chiang Mai University 239 Huay Kaew Road Chiang Mai 50200 Thailand
| | - Puracheth Rithchumpon
- Department of Chemistry, Faculty of Science, Chiang Mai University 239 Huay Kaew Road Chiang Mai 50200 Thailand .,Graduate School, Chiang Mai University 239 Huay Kaew Road Chiang Mai 50200 Thailand
| | - Worrapong Phupong
- School of Science, Walailak University 222 Thaiburi Nakhon Si Thammarat 80161 Thailand
| | - Phuangthip Bhoopong
- School of Allied Health Science, Walailak University 222 Thaiburi Nakhon Si Thammarat 80161 Thailand
| | - Suriya Tateing
- Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University 239 Huay Kaew Road Chiang Mai 50200 Thailand
| | - Wilart Pompimon
- Laboratory of Natural Products, Centre for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University Lampang 52100 Thailand
| | - Natthawat Semakul
- Department of Chemistry, Faculty of Science, Chiang Mai University 239 Huay Kaew Road Chiang Mai 50200 Thailand .,Center of Excellence in Materials Science and Technology, Chiang Mai University 239 Huay Kaew Road Chiang Mai 50200 Thailand
| | - Ni-Orn Chomsri
- Agricultural Technology Research Institute (ATRI), Rajamangala University of Technology Lanna 202 Pichai District Lampang 52100 Thailand
| | - Puttinan Meepowpan
- Department of Chemistry, Faculty of Science, Chiang Mai University 239 Huay Kaew Road Chiang Mai 50200 Thailand .,Center of Excellence in Materials Science and Technology, Chiang Mai University 239 Huay Kaew Road Chiang Mai 50200 Thailand
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Phupong C, Suenaga M, Bhoopong P, Chunglok W, Jaritngam G, Karak M, Yoshida K, Phupong W, Torikai K. Precise 1H- and 13C-NMR reassignment of dehydrocrebanine by 10-mg INADEQUATE and in silico analysis: With an alert for its toxicity. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Chawawisit K, Bhoopong P, Phupong W, Lertcanawa M. Combination Effect Between 2, 4-Di-tert-butylphenol Produced by Streptomyces sp. KB1 TISTR 2304 and Vancomycin Against Methicillin-resistant Staphylococcus aureus (MRSA). INT J PHARMACOL 2016. [DOI: 10.3923/ijp.2016.838.844] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Preeprem S, Mittraparp-arthorn P, Bhoopong P, Vuddhakul V. Isolation and characterization of Vibrio cholerae isolates from seafood in Hat Yai City, Songkhla, Thailand. Foodborne Pathog Dis 2014; 11:881-6. [PMID: 25188839 DOI: 10.1089/fpd.2014.1772] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Seafood has been identified as an important source of Vibrio cholerae in Thailand, especially in the Southern coastal region. In this study, we isolated and characterized V. cholerae from seafood obtained from several markets in Hat Yai city, Southern Thailand. A total of 100 V. cholerae isolates were obtained from 55 of 125 seafood samples. The dominant serotype was non-O1/non-O139. Polymerase chain reaction (PCR) analysis was used to detect the presence of pathogenesis-related genes. The stn/sto and hlyA El Tor virulence genes were detected in 20% and 96% of the isolates, respectively. None of the isolates were positive for the ctxA, tcpA, zot, and ace genes. Only 6% of the isolates carried the T3SS gene (vcsV2); however, the majority of the isolates (96%) carried the T6SS gene (vasH). Representative isolates (n=35) that exhibited various virulence gene patterns were randomly selected and analyzed for their hemolytic activity, antibiotic susceptibility, biofilm formation, and genotype. Hemolytic activity using sheep red blood cells was detected in only one of the hlyA-negative isolates. Apart from ampicillin, all isolates were pansusceptible to five test antibiotics. Biofilm production was observed in most of the isolates, and there was no difference in the presence of a biofilm between the smooth and rugose isolates. Using the enterobacterial repetitive intergenic consensus-PCR method, clonal relationships were observed among the isolates that exhibited identical virulence gene patterns.
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Affiliation(s)
- Sutima Preeprem
- 1 Department of Microbiology, Faculty of Science and Food Safety and Health Research Unit, Prince of Songkla University , Hat Yai, Songkhla, Thailand
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Thongchan J, Bhoopong P, Yingkajorn M, Nishibuchi M, Vuddhakul V. Total number, virulence genes, and heterogeneity of Vibrio parahaemolyticus in a single shellfish. ScienceAsia 2013. [DOI: 10.2306/scienceasia1513-1874.2013.39.230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Kamruzzaman M, Bhoopong P, Vuddhakul V, Nishibuchi M. Detection of a functional insertion sequence responsible for deletion of the thermostable direct hemolysin gene (tdh) in Vibrio parahaemolyticus. Gene 2008; 421:67-73. [DOI: 10.1016/j.gene.2008.06.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2008] [Revised: 05/28/2008] [Accepted: 06/02/2008] [Indexed: 10/22/2022]
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Wootipoom N, Bhoopong P, Pomwised R, Nishibuchi M, Ishibashi M, Vuddhakul V. A decrease in the proportion of infections by pandemic Vibrio parahaemolyticus in Hat Yai Hospital, southern Thailand. J Med Microbiol 2007; 56:1630-1638. [DOI: 10.1099/jmm.0.47439-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Infection by the pandemic clone of Vibrio parahaemolyticus is prevalent in southern Thailand. This study actively surveyed the incidence of V. parahaemolyticus infection in this area. A total of 865 isolates of V. parahaemolyticus was obtained from patients at Hat Yai Hospital, the main public hospital in Songkhla Province, Thailand, from 2000 to 2005. The isolates were examined by group-specific PCR (GS-PCR) specific for the pandemic clone, and for the presence of two major virulence genes, tdh and trh, and the O : K serotype. Representative isolates were also examined by antibiogram pattern and DNA fingerprinting using an arbitrarily primed PCR method to determine the clonal relationships between isolates. The total number of isolates was less in 2000 and more in 2004 and 2005 than in the years 2001–2003. The increase in the numbers of infections in 2004 and 2005 was not due to the emergence of a particular clone having unique characteristics, but was probably due to climate change. From 2000 to 2003, the percentages of pandemic strains of V. parahaemolyticus, defined as GS-PCR-positive tdh
+
trh
−, was stable at 64.1, 67.5, 69.7 and 67.7 % of the total isolates each year, respectively. However, in 2004 and 2005, the percentages decreased to 56.1 and 55.5 %, respectively. The O : K serotypes of the pandemic isolates remained unchanged. The proportional decrease in infections caused by the pandemic strains are probably due to the population in this area gradually developing immunity to the pandemic clone whilst continuing to be susceptible to other strains.
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Affiliation(s)
- Nutthakul Wootipoom
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand
| | - Phuangthip Bhoopong
- Institute of Allied Health Science and Public Health, Walailuk University, Nakhonsithammarat, Thailand
| | - Rattanaruji Pomwised
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand
| | | | - Masanori Ishibashi
- Osaka Prefectural Institute of Public Health, Higashinari-ku, Osaka, Japan
| | - Varaporn Vuddhakul
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand
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Bhoopong P, Palittapongarnpim P, Pomwised R, Kiatkittipong A, Kamruzzaman M, Nakaguchi Y, Nishibuchi M, Ishibashi M, Vuddhakul V. Variability of properties of Vibrio parahaemolyticus strains isolated from individual patients. J Clin Microbiol 2007; 45:1544-50. [PMID: 17344357 PMCID: PMC1865899 DOI: 10.1128/jcm.02371-06] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Infections by strains belonging to the O3:K6 pandemic clone of Vibrio parahaemolyticus are prevalent in southern Thailand, and serovariants of these strains have also been detected. V. parahaemolyticus strains lacking important virulence genes (tdh and trh) were isolated from 6.5 to 10.9% of clinical specimens during the period from 2000 to 2003. In order to understand whether changes to the characteristics of V. parahaemolyticus occur during infection, 10 isolates collected from each of 63 patients who presented with diarrhea at the Hat Yai hospital from 2003 to 2004 were examined for the presence of the tdh and trh genes, the O:K serotype, and genetic markers for the pandemic clone. A total of 42 patients (66.7%) yielded identical isolates (homogeneous populations), and 21 of the patients (33.3%) yielded isolates that differed in at least one character from the other isolates (heterogeneous populations). The DNA fingerprints (examined by arbitrarily primed PCR and pulsed-field gel electrophoresis) of some, but not all, of the heterogeneous populations from single patients were indistinguishable. The results indicated that some patients were infected with a unique strain and that in vivo changes (tdh deletion or serotype conversion) might have occurred in certain individuals. It is therefore important to bear in mind that epidemiological studies based on the analysis of a single colony from a single patient might lead to misleading conclusions. Finally, the present study did not rule out the possibility that isolates lacking tdh and trh have unknown virulence mechanisms other than the tdh and trh genes.
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Affiliation(s)
- Phuangthip Bhoopong
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai 90112, Thailand
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Vuddhakul V, Bhoopong P, Hayeebilan F, Subhadhirasakul S. Inhibitory activity of Thai condiments on pandemic strain of Vibrio parahaemolyticus. Food Microbiol 2006; 24:413-8. [PMID: 17189767 DOI: 10.1016/j.fm.2006.04.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2005] [Revised: 03/01/2006] [Accepted: 04/01/2006] [Indexed: 11/28/2022]
Abstract
Antibacterial activity of 13 condiments used in Thai cooking was investigated with a pandemic strain of Vibrio parahaemolyticus. Using a disk diffusion technique, freshly squeezed extracts from galangal, garlic and lemon, at a concentration of 10 microl/disk produced a clear zone of 13.6+/-0.5, 11.6+/-0.5 and 8.6+/-1.2mm, respectively. The inhibitory activity of these 3 condiments on pandemic strains was not significantly different from that on non-pandemic strains of V. parahaemolyticus. Because of its popularity in seafood cooking, galangal was subjected to further investigation. Only a chloroform extract of galangal inhibited growth of V. parahaemolyticus producing a clear zone of 9.5+/-0.5, 12.0+/-0 and 13.5+/-0.5mm diameter at concentrations of 25, 50 and 100 microg/disk, respectively. One active component is identified as 1'-acetoxychavicol acetate. The activity of galangal was not reduced at pH 3 or in the presence of 0.15% bile salt but was reduced by freeze and spray drying. Heating a fresh preparation of galangal to 100 degrees C but not 50 degrees C for 30 min also reduced growth inhibition. Therefore, using fresh galangal in cooking was recommended. The MIC and MBC of a freshly squeezed preparation of galangal were 1:16 and 1:16, respectively. This is the first report of an inhibitory activity of a Thai medicinal plant, galangal that is used in Thai cooking, on the pandemic strain of V. parahaemolyticus.
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Affiliation(s)
- Varaporn Vuddhakul
- Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat-yai, Thailand.
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