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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Utilization of Seaweed (Gracilaria sp.) Liquid as Cost-Effective Macronutrients and Micronutrients for Bioethanol Production

2023-01-01 , Zakaria N.Z.I. , Ahmad Anas Nagoor Gunny , Dzahir M.I.H.M. , Ahmad A.A. , Ismail K.S.K. , Mahmod S.S. , Javed M. , B.-Yazdi N. , Saifuddin M.N.A.A.

Seaweed liquid waste from filter-squeezed drying process of Gracilaria sp. causes an unpleasant odour to the environment. Although this waste can partially be used as biofertilizer and heavy metals adsorbent, a bigger portion of the waste remains unutilized thus causing a problem to the environment. The present study aimed to utilize seaweed liquid waste as a supplement in fermentation media. To achieve this aim, Saccharomyces cerevisiae as a famous bioethanol producer was used to examine the ability of seaweed liquid to supply macronutrients and micronutrients in the media to produce ethanol. Interestingly, when used as a supplement in the fermentation media to produce ethanol, the liquid boosted ethanol production three folds from 200 mg/L of 2 % glucose alone to 600 mg/L of 2 % glucose in liquid. Additionally, the liquid was able to substitute yeast extract and peptone within YPD media to produce 647.48 mg/L ethanol as compared to only 542.39 mg/L with normal YPD which contains yeast extract and peptone. For that reason, the utilization of seaweed liquid as the supplement in the medium should be considered as an alternative cost-effective media for enhancing ethanol production without the addition of other nutrients.

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The development of a discrete event simulation (DES) model for evaluating the mechanized equipment in the Malaysia palm oil industry

2024-04-01 , Ahmarofi A.A. , Ahmad Anas Nagoor Gunny , Azani N.A.N.A. , Jalil M.F.A. , Ahmad A.A. , Idrus Z. , Ismail S.N. , Hamid S. , Ishak M.K.

The palm oil industry forms the backbone of the Malaysian agricultural economy and is indexed as one of the National Key Economic Areas (NKEAs). Despite the rapid demand for palm oil, the labor shortage caused by the Covid-19 pandemic has reduced harvest activity since the dependability on human labor is still high. Based on this scenario, the way forward to resolve the issue is through the implementation of mechanized equipment to assist plantation activities. However, the output rate based on the implementation of mechanized equipment in the Malaysian palm oil industry is still unclear. In this regard, this paper aims to develop a simulation model that mimics the operation of the mechanized equipment in the palm oil mill using a discrete event simulation (DES) approach. The related mechanized equipment has been considered in the simulation model to resemble the palm oil mill operation, namely clarification, extraction, sterilization, and stripping stations. As a result, it is found that the sterilization process contributes to the longest waiting time (122.89 seconds) and the highest number of waiting (3.04 tons). In contrast, stripping stations turn the lowest percentage of resource utilization. By improving the utilization of identified mechanized equipment, the dependability on human labor can be reduced gradually. Consequently, it will increase the harvest output known as Fresh Fruit Branches (FFB) yield and crude palm oil (CPO) production.

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Exploring antioxidant and antidiabetic potential of Mutingia calabura (Kerukupsiam) leaf extract: In vitro analysis and molecular docking study

2024-01-01 , Ahmad Anas Nagoor Gunny , Prammakumar N.K. , Ahmad A.A. , Subash Chandra Bose Gopinath , Bakar A.R.A. , Musa H. , Mohd Hishamuddin Che Mat

Antioxidant activity and antihyperglycemic constituents and of traditional medicinal plants are currently the preferred therapeutic means of treatment and management of diabetes because of the undesired adverse effect of synthetic drugs. Muntingia calabura (Kerukupsiam) leaves and other parts are considered as alternative natural sources of treatment for diabetes. Ultrasonic assisted extraction is a novel approach for extraction of phytoconstituents which gives high extraction yield of bioactive compounds. However, there has been no published information presently on the use of ethanol ultrasonic assisted extraction method for assessment of antioxidant and antidiabetic activities of M. calabura leaves. Hence, the current study aims to evaluate the in vitro antioxidant and antidiabetic activities of M. calabura leave extract. IC50 analysis was done to determine theinhibitory concentration and the results obtained from 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay showed IC50 of gallic acid to be 1.0 µg/ml, which is lower than M. calabura leaves extract at 2.54 µg/ml, indicating that only small concentration of gallic acid was required to inhibit the free radicals at 50 %. However, IC50 analysis for amylase inhibition showed that M. calabura extract had 44.39 µg/ml antidiabetic activity compared to acarbose with 57.1 µg/ml activity. This indicates that M. calabura leaves extract has a better inhibition on amylase activity compared to the acarbose which is a synthetic drug. Further still, in silico study was carried out and the molecular docking result of eight ligands against amylase indicates quercetin had the least binding free energy of −9.1 kcal/mol, indicating the strongest interaction. Using Lineweaver-Burk plot, the results showed a competitive inhibition, hence, it was justified that M. calabura has the potential to manage diabetes and other diseases related to free radicals.

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Antifungal Activity of Essential Oil Extracted from Melaleuca alternifolia Against Pathogenic Fungi on Mango (Mangifera Indica L.) for Mango Postharvest Application

2022-01-01 , Ahmad Anas Nagoor Gunny , Seminai J.J.A. , Mohd Hishamuddin Che Mat , Ahmad A.A. , Yusof R. , Fadhilnor Abdullah

An infection by pathogenic fungi is one of the major problems in post-harvest stage of mangoes. Therefore, the extraction of essential oil from Melaleuca alternifolia is being tested as a natural fungicide for controlling fungus infections of selected mangoes locally known as susu mango. The extraction was performed using Solvent-Free Microwave Assisted Extraction with a yield of 0.57% concentration. The inhibitory effect of this essential oil against isolated fungi from mango was investigated through in-vitro and in-vivo analyses. Distilled water was used as a negative control while chemical fungicide (Globus 5.5) was used as a positive control in the analyses. The mycelial growth inhibition of the extracted essential oil for poisoned food test and disc diffusion method showed 62.50 ± 0.49% and 59.70 ± 0.30%, respectively, for in-vivo experiment which used unwounded and artificially wounded mangoes. The result also demonstrated that the essential oil applied on the mangoes could decrease the disease incidence from 100% to 61.33% for up to 10 days incubation at room temperature compared to that of the control. Hence, the essential oil of Melaleuca alternifolia can act as a green fungicide and is also a promising alternative to the synthetic chemical fungicide for controlling post-harvest disease on mangoes.

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