scholarly journals Dyeing Properties and Storage Stability of Leaf Powder Prepared from Dyer's Knotweed(II) - by Hot Air and Room Temperature Drying Methods -

2009 ◽  
Vol 21 (4) ◽  
pp. 23-32 ◽  
Author(s):  
Youn-Sook Shin ◽  
Kyung-Hee Son ◽  
Dong-II Yoo
LWT ◽  
2020 ◽  
Vol 131 ◽  
pp. 109764 ◽  
Author(s):  
Sucheta Khubber ◽  
Kartikey Chaturvedi ◽  
Seyed Mohammed Taghi Gharibzahedi ◽  
Rui M.S. Cruz ◽  
Jose Manuel Lorenzo ◽  
...  

2002 ◽  
Vol 31 (6) ◽  
pp. 765-774 ◽  
Author(s):  
Roberto A DePaz ◽  
Douglas A Dale ◽  
Christopher C Barnett ◽  
John F Carpenter ◽  
Alfred L Gaertner ◽  
...  

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Xue Bai ◽  
Mei-Li Zhang ◽  
Yuanyuan Zhang ◽  
Jing Zhang ◽  
Yakun Zhang ◽  
...  

Oat bran is a nutrient-dense, resource-rich byproduct that is produced from oat milling. Oxidative deterioration is the main reason that limits the utilisation of oat bran. Thus, improving the storage stability of oat bran has become an urgent requirement. This study aimed to investigate the inhibition of oat bran deterioration via steaming, microwaving, and hot-air drying treatments and the effects of these methods on oat bran physicochemical properties and storage stability. Results indicated that, after the three heating treatments, the solubility of oat bran increased and the powder fluidity showed no significant change ( P < 0.05 ). Steam-treated oat bran demonstrated increased initial gelatinisation temperature, peak temperature, and enthalpy, significantly reduced peak viscosity, trough viscosity, breakdown value, final viscosity, and setback value, and significantly improved thermal stability ( P < 0.05 ). During accelerated storage, oat bran samples subjected to the three heat treatments showed increased sensory scores and L ∗ , a ∗ , and b ∗ values, whereas due to the decrease of lipase activity in oat bran, their fatty acid values and malondialdehyde content increased slowly and were always lower than those of unprocessed oat bran. All three heat treatments could improve the storage stability and the quality deterioration of oat bran during storage due to oil oxidation. Steaming had the most significant effect.


The chemical, physical evaluation and storage stability of cookies was carried out. studies on quality was based on physico-chemical analysis that is weight, diameter, thickness ,spread ratio, moisture, fat, protein, ash, crude fiber, carbohydrate content as well as sensory characteristics which was determined for fresh and stored sample. The characteristics of cookies were influenced by packaging material, environmental conditions and constituents present in flour. Cookies was packed in LDPE bags and stored at room temperature. This study was conducted at the interval of 15 days up to 45days.


2020 ◽  
pp. 27-40
Author(s):  
C. O. Ajogun ◽  
S. C. Achinewhu ◽  
D. B. Kiin- Kabari ◽  
O. M. Akusu

The objective of this work was to evaluate the physicochemical characteristics and storage stability of virgin coconut oil (VCO) extracted using cold press and hot press processes. Data were collected and analyzed using complete randomization design (CRD). The work was done at the Department of Food Science and Technology, Rivers State University, Port Harcourt. Virgin coconut oil (VCO) was extracted from mature nuts of Cocos nucifera, using the cold and the hot process. Hot process gave significantly (P<0.05) higher oil recovery of 58%, while cold process gave 52% oil recovery. Free fatty acid (FFA) content was 0.054% and 0.051% for cold press and hot press, respectively. Peroxide Value (PV) of the two oil samples were 1.173 mEq/ kg and 1.288 mEq/kg for CPCO and HPCO, respectively. The physicochemical properties of VCO from both processes were not significantly (P>0.05) different. Iodine value was 5.72 g/100 g and 6.09 g/100 g for cold pressed and hot pressed VCO, respectively. Lauric acid was the predominant fatty acid in the coconut oil samples, recording 49.30% in hot pressed coconut oil and 48.76% in cold pressed coconut oil. The melting point was found to increase while the smoke point decreased significantly (P<0.05) for both cold pressed and hot pressed VCO after three months of storage at room temperature (28±20C). Percentage free fatty acid and peroxide values increased significantly from 0.054% to 0.742% and 1.173 mEq/kg to 2.274mEq/kg, respectively, after 3 months of storage at room temperature (28±20C). The overall result showed that coconut is a good source of vegetable oil, with good keeping quality. More also, there isn’t much difference in the physicochemical quality of both hot press and cold press method of extraction.


2021 ◽  
Vol 24 ◽  
Author(s):  
Johnnathan Lima Maia ◽  
Nédio Jair Wurlitzer ◽  
Janice Ribeiro Lima ◽  
Maria de Fátima Borges ◽  
Monique de Oliveira Maia ◽  
...  

Abstract Tamarind is a tropical fruit with relevant importance for family agriculture, and can be used as raw material for a ready-to-drink juice; however, there are few data in the literature associated with the tamarind juice storage stability. This work aimed to evaluate the physicochemical, sensory and microbiological stability of tamarind juice throughout storage at room temperature (~28 °C) for 180 days. Two juice formulations were produced, a control (pH 2.5), and the formulation with acidity reduction (pH 3.5). Physicochemical (pH, acidity, and soluble solids), sensory and microbiological analyses were performed for both juices along storage. The results showed that both juices were stable regarding all physicochemical parameters analyzed. Furthermore, both juices kept sensory scores in the acceptance zone, despite little changes in attributes (tamarind, sour, and sweet taste) for the partially neutralized juice (pH 3.5). Microbiological results were also stable for the period analyzed, which indicated efficient good manufacturing process alongside efficient heat treatment. Therefore, both juices can be stored at room temperature without presenting quality loss.


2014 ◽  
Vol 687-691 ◽  
pp. 4515-4519
Author(s):  
Jian Chun Zhao

In this paper, yam functional food technology and storage stability were studied, the results indicate that storage time and temperature on the results significantly higher than room temperature sample storage, cryogenic sample index changes significantly, the moisture content of the sample affect the sensory scores larger.


2020 ◽  
Vol 8 (4) ◽  
pp. 1406-1410
Author(s):  
Pushpa Chethan Kumar ◽  
Bhuvaneswari Sethuraman ◽  
Shamina Azeez ◽  
Ranjitha Kozhummal

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