Wahidu Zzaman
Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia Food Engineering and Tea Technology, Shahjalal University of Science and Technology, Sylhet-3114, Bangladesh

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Biosynthesis of ZnO Nano-particle and its quality evaluation on the shelf life extension of fruit Yasmin, Farzana; Hossain, Md. Murad; Nurul, Huda; Maryani, Anis Tatik; Zzaman, Wahidu
Indonesian Food Science and Technology Journal Vol. 7 No. 1: Volume 7. Number 1, December 2023 |IFSTJ|
Publisher : Department of Technology of Agricultural product (THP) Jambi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/ifstj.v7i1.30810

Abstract

Consumers around the world want fruits with high quality, without chemical preservatives, and with an extended shelf life. Edible films and coating received a considerable amount of attention in recent years because they are useful and beneficial over synthetic packaging. Prolonging of shelf life of food is an important goal to be attained. Many storage techniques have been adapted to extend the marketing distance and holding periods for commodities after harvest. Edible coatings are thin layers of edible material applied to the product surface to provide a barrier to moisture, oxygen, and solute movement for food. The purpose of this study was to produce bio-synthesized ZnO Nano-particles from spinach. The coating solution is prepared by mixing Nano-particles with chitosan-acetic acid solution and evaluates the shelf-life after treatment as a coating. The study showed that coated fruit maintained its quality up to 28 days of the study period. Thus, it can be concluded that ZnO Nano-particles can be used as a coating for increasing shelf-life.
Characteristics of Bangladesh Commercial Chicken Skin and Its Crispy Product Cooked with Different Methods Mithun, Mahmudul Hasan; Hossain, Md. Murad; Islam, Nazmul; Talukder, Md. Khyrul Alam; Hosen, Tanjir; Zzaman, Wahidu; Depison, Depison; Susilo, Agus; Huda, Nurul
Indonesian Food Science and Technology Journal Vol. 8 No. 2 (2025): Volume 8. Number 2, July 2025 |IFSTJ|
Publisher : Department of Technology of Agricultural product (THP) Jambi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/ifstj.v8i2.47253

Abstract

Abstract— This study investigated chicken skin as a cost-effective protein source for crispy snacks, focusing on its physical characteristics and optimal cooking methods. Chicken skin samples were collected from four suppliers—BRAC, CP, Eon, and AG group—and assessed for physical quality, including color, texture, moisture content, and presence of feathers. Visual defects such as black, red, and yellow spots were counted per kilogram to evaluate quality and freshness, with the highest quality samples selected for further testing. The AG’s chicken skin was selected for making the Crispy fried chicken skin product. The AG’s chicken skins were cut into uniform square-shaped pieces and further cooked under three different cooking conditions: immediate frying, after marinating, and after storage at room temperature (20–25°C), cooling (0–4°C), and freezing (-20°C). The results showed that AG chicken skin was the best choice for producing Crispy fried chicken skin. The storage conditions prior to the cooking process significantly affected the quality of the resulting crispy skin product. Freezing has been shown to be the most effective storage method, maintaining the appearance, taste, and texture of the skin for a long period of time, whereas storage at room temperature and chilling can cause rapid deterioration, reduce crispiness, and develop undesirable sensory characteristics. Further research is needed to ensure consistent quality in large-scale production and further refinement of the frying technique for frozen chicken skin is recommended.