Effects of different drying methods on quality changes and energy characteristics of tilapia fillets

2020 ◽  
Vol 54 (3) ◽  
pp. 186-209
Author(s):  
Linbao Wei ◽  
Weiqiang Qiu ◽  
Yingshan Jin ◽  
Ruilin Zheng ◽  
KyungHo Row ◽  
...  
2020 ◽  
Vol 7 (2) ◽  
pp. 75-83
Author(s):  
Tulsi Gurung ◽  
Karma Wangchuk ◽  
Bishal Sitaula

Farmers in Bhutan practice hot water blanching and sun drying of green chillies as one of the preservation measures. The blanched dried chilli is known as ema shukam locally and is used in preparing various traditional cuisines. Blanching is done for 2-3 minutes by immersing in boiling water and drying in open sun. However, blanching and drying process lead to quality changes such as texture, colour, flavour, and nutritional value. Therefore, this study aimed to determine the proximate compositions of sun dried and oven dried green-blanched chillies. An experiment with two drying methods and two levels of blanching durations with three replications for each treatment were conducted to examine the proximate compositions of the dried and blanched chillies. Blanching duration of two minutes retained higher carbohydrates (x͂ = 31.78) than three minutes (x͂ = 26.08). However, the Mann-Whitney U test showed no significant effect of blanching duration on carbohydrate (U = 7.5, z = - .690, p > .05). Drying methods had significant effect only on fat content with oven drying retaining higher fat content (x͂ = 4) compared to sun drying method (x͂ = 2); (U = 2, z = -2.713, p < .01). Blanching for three minutes resulted in higher loss of Vitamin C content. The colour of oven dried chilli was dark brownish green even at lower temperature of 37 oC. Hot water blanching of green chillies for two minutes followed by sun drying produced desired colour of dried chillies.


2020 ◽  
Vol 4 (2) ◽  
pp. 185
Author(s):  
Johannes Kurniawan

Spinach is food that is easily wilted and easily damaged, so spinach that has been harvested must be immediately marketed and consumed. There are two methods to extend the shelf life of spinach, namely cooling and drying methods. This study uses the drying method.  The advantages of drying compared to cooling are that the dried material is more durable, the volume and weight are reduced, resulting in lower costs for packaging, transportation and storage. Along with the development of food technology, vegetable milk began to be introduced as an alternative ingredient for making yogurt whose nutritional value is not inferior to animal milk yogurt. In order to be more attractive to increase income and add coloring, the natural coloring is green spinach, considering there has never been researched into making yogurt with the addition of green spinach as a natural coloring. The treatment of adding green spinach vegetable extracts by 15% and 25% affects the quality changes that occur in yogurt made from soy milk. By simply differentiating the addition of 15% and 25% can prove the influence of changes in yogurt quality made from soy milk. Keywords: Organoleptic Test, Yoghurt, Green Spinach, Soy Milk


2006 ◽  
Vol 24 (8) ◽  
pp. 1025-1032 ◽  
Author(s):  
Hu Qing-guo ◽  
Zhang Min ◽  
Arun S. Mujumdar ◽  
Du Wei-hua ◽  
Sun Jin-cai

2016 ◽  
Vol 35 (4) ◽  
pp. 478-489 ◽  
Author(s):  
O. O. Cyprian ◽  
M. V. Nguyen ◽  
K. Sveinsdottir ◽  
T. Tomasson ◽  
G. Thorkelsson ◽  
...  

Author(s):  
T. G. Naymik

Three techniques were incorporated for drying clay-rich specimens: air-drying, freeze-drying and critical point drying. In air-drying, the specimens were set out for several days to dry or were placed in an oven (80°F) for several hours. The freeze-dried specimens were frozen by immersion in liquid nitrogen or in isopentane at near liquid nitrogen temperature and then were immediately placed in the freeze-dry vacuum chamber. The critical point specimens were molded in agar immediately after sampling. When the agar had set up the dehydration series, water-alcohol-amyl acetate-CO2 was carried out. The objectives were to compare the fabric plasmas (clays and precipitates), fabricskeletons (quartz grains) and the relationship between them for each drying technique. The three drying methods are not only applicable to the study of treated soils, but can be incorporated into all SEM clay soil studies.


Planta Medica ◽  
2014 ◽  
Vol 80 (16) ◽  
Author(s):  
N Lamanauskas ◽  
V Eisinaitė ◽  
J Sakalauskaitė ◽  
J Viškelis ◽  
E Dambrauskienė ◽  
...  

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