Ahmad Anas Nagoor Gunny
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Preferred name
Ahmad Anas Nagoor Gunny
Official Name
Ahmad Anas, Nagoor Gunny
Alternative Name
Nagoor Gunny, Ahmad Anas
Gunny, A. A.N.
Nagoor Gunny, A. A.
Ahmad Anas, N. G.
Gunny, Ahmad Anas Nagoor
Main Affiliation
Scopus Author ID
55940833700
Researcher ID
AFF-6251-2022

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In-vitro antioxidant and antidiabetic activity of curcuma xanthorrhiza

2021-05-03 , Ahmad Anas Nagoor Gunny , Qing L.Z. , Che Mat M.H.

Antioxidant is a basic requirement for maintaining good health and antidiabetic is very important for maintaining blood glucose level of diabetes mellitus patients. In this research, natural compounds were extracted from Curcuma xanthorrhiza (Javanese turmeric). The compounds were extracted using ultrasonic assisted extraction (UAE) for in-vitro antidiabetic and antioxidant studies. The extracts were analysed using amylase inhibitory assay and DPPH radical scavenging assay. Finally, the alpha amylase inhibitor of the extracts was studied to identify the mode of inhibition. From the result obtained, the rhizome extract of C. xanthorrhiza showed the higher antioxidant activity in comparison to the leaves extract of the plant. As for antidiabetic activity, maximum of 70% was observed at 100μg/ml which was compared with that of the standard, Acarbose that indicated 72% inhibition. The IC50 (Half-Maximal Inhibitory Concentration) of the rhizome extract was found to be 0.4417 and for Acarbose 0.9256. The mode of amylase inhibition exhibited a pattern of competitive inhibition. These results have proven that C. xanthorrhiza is a potentially useful herbal candidate for treatment of diabetic and other diseases related to free radicals.

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Bio-based Packaging Materials for Fruit and Vegetables-Current Applications and Future Trends: A Review

2023-01-01 , Razman N.S. , Farizul Hafiz Kasim , Ahmad Anas Nagoor Gunny , Subash Chandra Bose Gopinath , Yussuf M.A.M.

A growing concern of green packaging material for fresh fruit and vegetables is highly demanded. Deterioration of fresh fruits and vegetables primary causes by postharvest damage, moisture loss, biochemical changes, and microorganism. To achieve this goal, biopolymers should be economic, renewable, abundant, and capable of preserving microbial growth while having an outstanding thermal, mechanical, and barrier properties. The most current developments in biopolymer-based coatings and films for active fruit and vegetables packaging are described in this review. Synthetic polymers from biomass monomers (PHA and PLA), animal derived biopolymer (chitosan, gelatin, whey protein, casein and others) and wood-based polymers (cellulose, hemicellulose, starch, lignin and others) were among the materials that were most widely exploited for the packaging development of coatings and films. Reinforcement with nanomaterials and incorporating active agents such as antimicrobial, organic (e.g. nanocellulose fibrils), and inorganic materials also address these shortcomings in biopolymer-based composite This review summarized the characteristics and advantages of whole or fresh cut fruit and vegetables bio-based packaging, as well as the methods employed to improve their performance.

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Challenges of postharvest water loss in fruits: Mechanisms, influencing factors, and effective control strategies – A comprehensive review

2024-09-01 , Gidado M.J. , Ahmad Anas Nagoor Gunny , Subash Chandra Bose Gopinath , Ali A. , Wongs-Aree C. , Noor Hasyierah Mohd Salleh

Water loss is a critical concern in postharvest fruit technology, significantly impacting fruit quality, shelf life, and market value. This phenomenon involves the loss of moisture from fruit tissues, leading to physiological changes, reduced quality, and lower market value, which can contribute to food waste. Consumers perceive fruit with visible signs of water loss as lower quality. Therefore, minimizing water loss is essential through proper postharvest handling and storage practices, including temperature and humidity control, cooling, humidification, and the application of edible coatings and new modified coating techniques. Despite the importance of managing water loss, comprehensive information on its mechanisms and contributing factors in postharvest fruit technology is scarce. This paper aims to provide insights into the mechanisms, impact, influencing factors, and control strategies related to water loss in the context of postharvest fruit technology.

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Deep Eutectic Solvent Pretreatment of Rubber Seed Shells for Cellulose and Hemicellulose Production

2023 , Nur Zatul 'Iffah Zakaria , Norshakilla Afendi , Ahmad Anas Nagoor Gunny , Younesi Habibollah , Ku Syahidah Ku Ismail

Ethanol is a clean biofuel that can be produced from biomass, namely, rubber seed shells. Rubber seed shells (RSS) tend to be less worthy and are rapidly becoming an agricultural waste. The environment is getting incredibly degraded as the industrial world constantly expands and has become more technologically developed in industrial operations. Generally, the most common chemical method used in pretreatment is acid and alkaline based. However, this method is unsuitable since it causes a lot of problems such as inhibitors generation and high energy consumption during the pretreatment process. Therefore, in this study, deep eutectic solvent (DESs) was used as the green solvent to pretreat the RSS for more environmentally friendly production of cellulose and hemicellulose. Seven combinations of hydrogen bond acceptor (HBA) and hydrogen bond donor (HBD) were used to synthesize DESs based on their molar ratio and physiochemical properties (pH, viscosity, density, hydrogen bond) were examined. Later, the best synthesized DES to pretreat RSS based on the cellulose and hemicellulose content was evaluated. The chemical composition (cellulose, hemicellulose and lignin) for untreated and pretreated RSS were determined by using the ASTM and TAPPI methods. The experimental results showed that the higher cellulose production were obtained by using acidic based DESs; ChCl:Oxalic acid, ChCl:Lactic acid and ChCl:Formic acid (24.43, 20.42, and 20.31%, respectively). Meanwhile, higher hemicellulose was obtained when using ChCl:Ethylene glycol and ChCl:Urea, with 46.86% and 41.14%, respectively. Hence, the study showed that acidic and slightly acidic based DESs were able to produce high cellulose and hemicellulose from RSS.

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Antioxidant and xanthine oxidase inhibitory activity of euphorbia hirta leaves crude extract

2020-01-01 , Ahmad Anas Nagoor Gunny , Carmen T. , Mat M.H.C. , Nordin A.A. , Nasir A.M.

Today, exposure to free radicals and gout cases have been a concern, showing several health effects from synthetic medications and clinical drugs for antioxidant effect and xanthine oxidase inhibition effect, respectively; all of which lead to the discovery of natural inhibitors from medicinal plants. In this study, a green solvent known as the deep eutectic solvent is synthesised to replace conventional solvents for the extraction of free radical inhibitors and xanthine oxidase inhibitors from a medicinal plant that has shown many health benefits and is widely used in traditional medicine, the Euphorbia hirta. The leaves extract from Euphorbia hirta showed the highest inhibition (87.95 ± 0.0061%) on free radical assays. The IC50 for free radical inhibition of the leaves extract is 10.56 ± 0.58 µg/mL. The IC50 value for xanthine oxidase inhibition of allopurinol was the lowest, which was at 6.94 ± 0.32 µg/mL; while the leaves extract of Euphorbia hirta exhibited value at 9.40 ± 0.13 µg/mL. The correlation value between the antioxidant effect and the xanthine oxidase inhibition of the leaves extract was 0.960, which indicated that there is a strong relationship between the two said parameters. From the Lineweaver-Burk plot and solver function analysis, the mode of enzyme inhibition was a non-competitive inhibition.

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