Zhi Xiang Ng

ORCID: 0000-0002-9423-7206
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Research Areas
  • Natural Antidiabetic Agents Studies
  • Phytochemicals and Antioxidant Activities
  • Retinal Diseases and Treatments
  • Piperaceae Chemical and Biological Studies
  • Advanced Glycation End Products research
  • Essential Oils and Antimicrobial Activity
  • Ginger and Zingiberaceae research
  • Chronic Kidney Disease and Diabetes
  • Medicinal Plants and Neuroprotection
  • Neurological Disease Mechanisms and Treatments
  • Biochemical Analysis and Sensing Techniques
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Phytochemistry and Biological Activities
  • Retinoids in leukemia and cellular processes
  • Fungal Biology and Applications
  • Problem and Project Based Learning
  • Consumer Attitudes and Food Labeling
  • Mangiferin and Mango Extracts
  • Evaluation of Teaching Practices
  • Biochemical and biochemical processes
  • Diverse Scientific Research Studies
  • Medicinal Plants and Bioactive Compounds
  • Antioxidant Activity and Oxidative Stress
  • Ginkgo biloba and Cashew Applications
  • Diet and metabolism studies

University of Nottingham Malaysia Campus
2017-2025

National Institutes of Biotechnology Malaysia
2023

Mahsa University
2013

University of Malaya
2011-2013

This study aimed to evaluate the effect of four solvents (water, methanol, ethyl acetate, and n-hexane) on extraction total phenolic content (TPC), tannin, flavonoid, ferric reducing power (FRAP), radical scavenging activity from Centella asiatica, Musa acuminata, Peperomia pellucida, Psophocarpus tetragonolobus. The TPC, antioxidant varied significantly according solvent polarity plant species. strong linear correlation found between index FRAP as well indicated with increasing favored...

10.1111/jfpp.14680 article EN Journal of Food Processing and Preservation 2020-06-25

Abstract Solanum lycopersicum , which is commonly known as tomato, not only serves a dietary fruit vegetable but also functional food that protects humans against chronic degenerative illnesses such diabetes microvascular complications, viral diseases, and cancers. The nutritional benefit of tomato largely attributed to its phytonutrient composition. influence post‐harvest processing methods, digestion process, compounds interaction on the bio‐accessibility phytonutrients are key aspects...

10.1002/fft2.299 article EN cc-by Food Frontiers 2023-07-20

Abstract Background In this priority-setting exercise, we sought to identify leading research priorities needed for strengthening future pandemic preparedness and response across countries. Methods The International Society of Global Health (ISoGH) used the Child Nutrition Research Initiative (CHNRI) method preparedness. Eighty experts in global health, translational clinical identified 163 ideas, which 42 then scored based on five pre-defined criteria. We calculated intermediate...

10.7189/jogh.14.04054 article EN cc-by Journal of Global Health 2024-02-15

The present study compares water-soluble phenolic content (WPC) and antioxidant activities in Chinese long bean (Vigna unguiculata), bitter gourd (Momordica charantia), water convolvulus (Ipomoea aquatica) broccoli (Brassica olearacea) prior to after subjecting boiling, microwaving pressure cooking. total activity was increased cooked convolvulus, gourd, estimated based on the ferric reducing power, Trolox equivalent capacity 2,2-diphenyl-1-picryl-hydrazyl radical scavenging activity....

10.3109/09637486.2010.526931 article EN International Journal of Food Sciences and Nutrition 2011-01-20

The COVID-19 pandemic has caused disruptions to the functioning of societies and their health systems. Prior pandemic, systems in low- middle-income countries (LMIC) were particularly stretched vulnerable. International Society Global Health (ISoGH) sought systematically identify priorities for research that would have potential reduce impact LMICs.The Child Nutrition Research Initiative (CHNRI) method was used COVID-19-related priorities. All ISoGH members invited participate. Seventy-nine...

10.7189/jogh.12.09003 article EN cc-by Journal of Global Health 2022-04-14

This study aimed to investigate the effect of in vitro digestion on total antioxidant activity and carbohydrate hydrolyzing enzymes inhibitory potential 12 functional plant-based foods. Undigested Centella asiatica showed highest activity, phenolic flavonoid content while Morus Alba Dioscorea polystachya displayed α-glucosidase α-amylase potential, respectively. In significantly (p < 0.05) increased radical scavenging activities all plant extracts. Both (r = 0.840, p 0.001) 0.549, 0.01)...

10.1111/jfpp.13903 article EN Journal of Food Processing and Preservation 2019-02-21

10.1007/s13197-017-2885-0 article EN Journal of Food Science and Technology 2017-09-27

This study aimed to compare the total phenolic (TPC), flavonoid (TFC), radical scavenging and cytotoxic activities in aqueous methanolic extracts of Angelica sinensis, Dioscorea polystachya, Ginkgo biloba, Glycyrrhiza uralensis Lycium barbarum with two dietary plants: Brassica oleracea Zingiber officinale. The TPC TFC medicinal plant were 12-93% lower than Z. officinale as follows: L. > G. A. sinensis biloba D. polystachya. decreasing activity shared similar trend: Both positively correlated...

10.1080/14786419.2020.1749617 article EN Natural Product Research 2020-04-14

Abstract This study investigated the effects of different heat treatments, namely boiling, microwaving and pressure cooking, on reduced ascorbic acid content antioxidant activity in Momordica charantia extracts. The total M. extracts was determined by ferric reducing-antioxidant power 2,2-diphenyl-1-picrylhydrazyl radical scavenging assays. estimated power-ascorbic assay confirmed high performance liquid chromatography. Regardless cooking method, all cooked had significantly (p &lt; 0.05)...

10.1590/1981-6723.28318 article EN cc-by Brazilian journal of food technology/Brazilian Journal of Food Technology 2019-01-01

Diabetic retinopathy is the most common diabetic eye disease, occurring in about 60% of type 2 patients. Other than known clinical risk factors, influence genes has been suggested as part development retinopathy. We investigated association Gly82Ser, 1704G/T and 2184A/G polymorphisms RAGE gene with patients Malaysia. Ninety-eight unrelated 185 healthy controls from all over Malaysia were recruited this study. The allele genotype frequencies three using PCR-RFLP. frequency did not differ...

10.4238/2012.march.1.2 article EN Genetics and Molecular Research 2012-01-01

Background/aims The receptor for advanced glycation end-products (RAGE) has been implicated in the pathogenesis of diabetic microvascular complications. aim this study was to investigate association between 2245G/A gene polymorphism RAGE and retinopathy Malaysian type 2 patients. Methods 342 unrelated patients (171 with (DR), 171 without (DNR)) 235 healthy subjects from all over Malaysia were recruited study. Genomic DNA isolated 3 ml samples whole blood using a modified conventional...

10.1136/bjophthalmol-2011-300658 article EN cc-by-nc British Journal of Ophthalmology 2011-11-24

This study aims to investigate potential diabetic retinopathy (DR) risk factors by evaluating the circulating levels of pentosidine, soluble receptor for advanced glycation end-product (sRAGE), oxidation protein product (AOPP) as well glutathione peroxidase (GPx) and superoxide dismutase (SOD) activities in DR patients. A total 235 healthy controls, 171 type 2 without (DNR) 200 patients were recruited. Plasma was extracted estimation sRAGE, AOPP GPx activity whereas peripheral blood...

10.3390/ijms14047480 article EN cc-by International Journal of Molecular Sciences 2013-04-03
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