http://umt-ir.umt.edu.my:8080/handle/123456789/877 FASM 2026-04-06T02:07:34Z http://umt-ir.umt.edu.my:8080/handle/123456789/15593 Title: Antioxidant properties, mineral content and sensory acceptance of napier grass teas as affected by different processing methods Authors: Ng Khai Shin Abstract: Investigation on the configuration of a towline model incorporated with ship towing system performance is obviously necessary to attain navigational towing safety at sea. Instead of employing typical towing models such as single and symmetrical bridle towline models, an asymmetrical bridle towline configuration is then proposed to improve the ship towing performance during operation. This thesis presents Computational Fluid Dynamics (CFD) analysis on the asymmetrical bridle towline model with respect to its effect on course stability and seakeeping performance of the ship towing system in calm water and waves, respectively. Several towing parameters such as various towing angles, towing speeds and towline lengths have been taken into accounts in the simulation. Here, the course stability performance of the towed barge has been analysed in three degrees-of-freedom i.e., surge sway and yaw motions. Meanwhile, the seakeeping characteristic has been assessed at various wavelengths and wave directions involving five degrees-of-freedom i.e., surge, sway, yaw, heave and pitch motions. 2020-01-01T00:00:00Z http://umt-ir.umt.edu.my:8080/handle/123456789/11116 Title: Effects of partially cooked frozen 'satar' on the chemical analyses, microbiological quality and sensory acceptance Authors: Suriani Ahmad Abstract: 'Satar' is a popular ready-to-eat food which is grilled before being served. Left over 'Satar' is frequently subjected to frozen and re-grilling. Storing the 'Satar' under freezing condition has been common practice and it will affect the quality of this product. This product may undergo undesirable changes during storage and such deterioration may affect the quality of 'Satar'. The changes of partially cooked frozen 'Satar' during storage and re-grilling have never been studied. Initially, 'Satar' was prepared under controlled environment by mixing the fish, onion, shallot, spices, sugar, salt and shredded coconut together. The chemical analysis was conducted every two weeks storage at -l 8 ° C. The moisture, carbohydrate, protein, lipid and ash contents of the 'Satar' were 66.89%, 5.39%, 11.71 %, 14.06% and 1.87%, respectively. In the present study, the peroxide value of 'Satar' significantly increased from 9.23 to 12.75 mEq/kg fat during frozen storage. 2012-01-01T00:00:00Z http://umt-ir.umt.edu.my:8080/handle/123456789/11075 Title: The effects of mixed loading of banana with mango during post harvest storage under ambient temperature Authors: Noor Anizah Maarof Abstract: Banana which is a climacteric fruit has unique characteristics. Unripe bananas showed a constant low level of ethylene production. Therefore, bananas need to be treated to triggers their ethylene production as example via treatment of mixed loading with mango. The aim of this study is to see the effects of ethylene produce by mango on bananas fruit during storage under ambient temperature. In this study, 1kg of banana were packed together with mango in 1 :0, 1: 1, 1 :2, and 1 :3 ratio by weight Evaluation of ripening of banana based on the surface color change, loss of firmness and the total soluble solid (TSS) contain in banana were taken daily for seven days. For surface color change, treatment of banana: mango (1:3) gave the higher impact on degreening of chlorophyll in banana during second days of storage because it showed a positive a* value compared to the other treatments and control. On the other hand, for loss of firmness treatment of banana: mango (1:2) and treatment of banana: mango (1 :3) had the low firmness value day to day through the time of storage. For the last parameter which is total soluble solid contain treatment of banana: mango (1 :3) had the higher brix value compared to the other treatments on the second day of storage because starch started to convert into sugar. These indicate that treatment of banana: mango (1 :3) had faster ripening rate compared to the others. In the conclusion, treatment of banana: mango with (1:3) ratio by weight is the best ratio to fasten the ripening process for bananas fruit which is until two days earlier if compared with control and I day earlier compared to the other treatments. 2009-01-01T00:00:00Z http://umt-ir.umt.edu.my:8080/handle/123456789/11019 Title: Bacteriological study in association with antibiotic and heavy metal resistance pattern of water sample from freshwater giant prawn hatchery Authors: Khabibah Md Amin Abstract: The total bacterial flora, antibiotic resistance and metal resistance the diseases associated with water sample of giant freshwater prawns post larvae, Macrobrachium rosenbergii were carried out. A study was undertaken to investigate the presence and the total plate count of bacteria isolates by using non selective agar medium such as Trypticase Soy Agar (TSA) and selective agar such as Thiosulfate Citrate Bile Sucrose Agar (TCBS), Pseudomonas Aeromonas Selective Agar Base (GSP), Mac Conkey Agar, Eosin Methylene Blue Agar (EMB) and Xylose Lysine Deoxycholate Agar (XLD). The total bacterial load on TSA, Mac Conkey and GSP agar varied on 102 cfu ml--i with higher counts seen in GSP agar that was 6.1 x 102 bacteria per ml. But the total bacteriological analysis on EMB, TCBS, and XLD agar to few to determine the count. 29 bacterial isolates were identified as Vibrio spp, Escherichia coli, Pseudomonas spp, Salmonella and Aeromonas spp. Heavy metal test with different level concentration such as cadmium dichloride anhydrous (cd) (25, 5.0,10,20 and 40mg/L), cuprum (Cu) (1.5, 300, 600, 1200 and 2400mg/L), Mercuric dichloride (Hg) (2.5, 5, 10, 20, 40μg) and potassium dichromate (Cr) (25, 50, 100, 200 and 400mg/l). The results showed toxicities in the order of Cd=Hg=Cr>Cu. In this pilot study, all bacterial isolates were examined for their resistance to different 15 antibiotics. These antibiotic included: Flumequine (50μg), Nitrofurantoin (50μg), Florfenicol(30μg), Amoxycillin(25μg), Doxycycline (30μg), Oleandomycin (15μg), Tetracycline (30μg), Ampicillin ( lOμg), Lincomycin (15μg), Colistin Sulphate (25μg), Oxolinic Acid (2μg), Novobiocin (30μg), Spiramycin ( lOOμg), Erythromycin (15μg) And Fosfomycin (50μg). Bacterial isolates were indicated that hundred percent resistance to Doxycycline, Oleandomycin, Linomycin, Novobiocin, Spiramycin, Fosfomycin and Flumequine. The lowest incidence of resistance was found in Nitrofurantoin, Florfenicol, Amoxicillin, Tetracyclyin, Ampicillin, Colistin Sulphate, Oxolinic Acid, and Erythromycin. MAR index shown that >0.2 for isolate bacteria indicated that environment was more polluted. Knowledge of the qualitative and quantitative aspects of bacterial flora in the hatchery would help to understand disturbances, if any, brought about during disease outbreaks to M rosenbergii. 2009-01-01T00:00:00Z