Shelf Life Prediction Modeling of Vacuum-Packaged Scallops on the Kinetics of Total Volatile Base Nitrogen

2011 ◽  
Vol 7 (4) ◽  
Author(s):  
Li Weiqing ◽  
Wang Jie ◽  
Sun Jianfeng ◽  
Li Weishuo ◽  
Wang Yajiao ◽  
...  

Argopecten irradians is one of the cultivated species of seafood in China. Frozen, dried, and vacuum-packaged scallops are the main processed forms of this species. Due to their high moisture content, vacuum-packaged scallops are perishable during storage; thus, accurately predicting shelf life according to the storage environment is particularly important for the seafood industry. Vacuum-packaged instant scallops stored at 20, 25, 30, 35, and 40 °C were used in the current study. Total volatile base nitrogen (TVB-N), pH, water activity, color, hardness, and microbiological composition were ascertained during storage. Based on the 10-point hedonic scale, the shelf lives of instant scallops stored at 20, 25, 30, 35, and 40 °C were 96, 78, 60, 42, and 32 days, respectively. Using the Arrhenius equation, a mathematic model based on storage temperature, TVB-N, and storage time was established. The Ea and k0 values were 51 kJ/mol and 3.96 × 106. The model can be used to predict the shelf life for any given temperature-time profile.

2015 ◽  
Vol 731 ◽  
pp. 389-392
Author(s):  
Wen Li Dong ◽  
Wei Xiao ◽  
De Pu Li ◽  
Zhi Hui Sun

The variation and dynamics of fat, fatty acid value and dissolution rate of protein of soybean under four storage temperatures conditions were studied. Dynamical model between the value of fatty acid and storage time, storage temperature was build according to the first-order kinetic equation which could predict and control the quality changes of soybeans during storage. The results showed that fat content of soybean and solubility ratio of protein were decreased with the extension of storage but the fatty acid value was increased. The shelf life was predicted according to the change of value of fatty acid during storage. Shelf life prediction model of any temperature between 5~35°C was established used Arrhenius equation and Q10 model and the error rate is less than 10%.


2012 ◽  
Vol 200 ◽  
pp. 466-469
Author(s):  
Wen Li Dong ◽  
Xue Gong ◽  
Jing Dong ◽  
Ling Jin ◽  
Yu Xiang Wei

The changing patterns of filbert peroxide value through the determination of different storage temperature conditions,research the dynamics characteristics of oxidative rancidity of filbert. By regression analysis base on the storage time and the logarithm of peroxide value,it concluded the grease oxidation reaction first-order kinetic equation of filbert.Using Arrhenius equation and Q10 model for 5 ~ 35 °C temperature within the shelf life of any temperature prediction model.


2016 ◽  
Vol 1 (1) ◽  
pp. 977-984
Author(s):  
Nurita Agustia ◽  
Raida Agustina ◽  
Ratna Ratna

Abstrak. Merupakan salah satu komoditi buah-buahan yang memiliki nilai ekonomi dan banyak digemari masyarakat. Manggis merupakan salah satu buah yang memiliki umur simpan yang relatif singkat, setelah itu manggis akan menjadi busuk dan tidak layak lagi bila di simpan di ruangan, Oleh karena itu perlu dilakukan pengemasan dan penyimpanan pada suhu dingin untuk mempertahankan masa simpan buah manggis. Penelitian ini bertujuan untuk melihat pengaruh kemasan plastik dan suhu penyimpanan terhadap masa simpan buah manggis.Abstract. Is one of the commodities fruits that have economic value and much-loved community. Mangosteen is a fruit that has a relatively short shelf life, after that mangosteen will be rotten and unfit when stored in the room, therefore it is necessary for packaging and storage at cold temperatures to preserve the shelf life of the mangosteen fruit. This study aims to look at the effect of plastic packaging and storage temperature on the shelf life of the mangosteen fruit.


2021 ◽  
Vol 8 (1) ◽  
pp. 37
Author(s):  
Elsera Br Tarigan ◽  
Edi Wardiana ◽  
Handi Supriadi

<p><em>Coffee is a beverage that is widely consumed around the world. Proper packaging and storage temperature may extend shelf life of ground coffee. The study aimed to analyze the shelf life of ground Arabica coffee stored in different packaging types and temperature, conducted at smallholder coffee plantations in Garut Regency and the Integrated Laboratory of Indonesian Industrial and Beverage Crops Research Institute, Sukabumi, from June to August 2018. A completely randomized design in factorial was used with 3 factors and 2 replications. The first factor was the packaging type  which consisted of 3 types: thick alumunium  foil 65</em><em>m</em><em> (AF65), thick alumunium  foil 130</em><em>m</em><em> (AF130), and thick lamination 114</em><em>m</em><em> (L144). The second factor was the storage temperature which consisted of 3 levels: 25 <sup>o</sup>C, 35 <sup>o</sup>C, and 45 <sup>o</sup>C, while the third factor was the storage period which consisted of 5 levels: coffee unstored, and coffee stored for 2 weeks, 4 weeks, 6 weeks, and 8 weeks. The variables observed were the water and fat content, and the analysis of shelf life was carried out using the ASLT (Accelerated Shelf Life Test) method. The results showed that during storage, the water content increased, whereas the fat content decreased. Fat content is a critical variable in determining the shelf life of coffee. The coffee in AF130 packaging has longer shelf life than in AF65 and L144. To extend the shelf life of coffee packaged in AF130 and L144 is best kept at 45<sup> o</sup>C whereas coffee in AF65 packaging  is ideally at 25<sup> o</sup>C.</em></p>


Author(s):  
Huynh Nguyen Duy Bao ◽  
Sigurjón Arason ◽  
Kristín Anna Þórarinsdóttir

The influence of different cooling techniques (dry ice/ice packs) and storage temperature (-2°C/3°C) to prolong the shelf life of Arctic charr (Salvelinus alpinus) fillets were evaluated by sensory analysis, physical methods, chemical and microbial analysis. The effects of storage temperature were stronger than of different cooling agents. Superchilling (-2°C) of fillets packed with dry ice resulted in 6 days extension of shelf life compared to chilling (3°C). The use of dry ice parallel to superchilling prolonged shelf life for 1 day compared to fillets stored with ice packs. No negative effects on quality of the fillets where detected that could be linked to cell destruction caused by partial freezing or to sour taste, caused by absorption of CO2 gas in fish flesh.


2007 ◽  
Vol 70 (10) ◽  
pp. 2297-2305 ◽  
Author(s):  
L. A. MELLEFONT ◽  
T. ROSS

Two commercially available organic acid salts, potassium lactate (PURASAL HiPure P) and a potassium lactate–sodium diacetate blend (PURASAL Opti.Form PD 4), were assessed as potential inhibitors of Listeria monocytogenes growth in modified atmosphere packaged (MAP) sliced ham in challenge studies. The influence of the initial inoculation level of L. monocytogenes (101 or 103 CFU g−1) and storage temperature (4 or 8°C) was also examined. The addition of either organic acid salt to MAP sliced ham strongly inhibited the growth of L. monocytogenes during the normal shelf life of the product under ideal refrigeration conditions (4°C) and even under abusive temperature conditions (i.e., 8°C). During the challenge studies and in the absence of either organic acid salt, L. monocytogenes numbers increased by 1,000-fold after 20 days at 8°C and 10-fold after 42 days at 4°C. Both organic acid salt treatments were found to be listeriostatic rather than listericidal. The addition of either organic acid salt to the MAP ham also reduced the growth of indigenous microflora, i.e., aerobic microflora and lactic acid bacteria. The influence of these compounds on the risk of listeriosis in relation to product shelf life is discussed.


1972 ◽  
Vol 52 (5) ◽  
pp. 817-826 ◽  
Author(s):  
NAOMI TEMKIN-GORODEISKI ◽  
R. S. KAHAN ◽  
R. PADOVA

Darkening of onion buds due to irradiation was investigated during three seasons on three cultivars of onion, Riverside, Egyptian, and Grano. The effects of radiation dose (0.7–80 krads), delay in irradiation after harvest, and storage temperature were studied. No darkening occurred during storage of up to 8 months at 0 C, though slight darkening sometimes appeared during subsequent shelf life. At ambient temperatures (10–30 C) three types of radiation damage were found. The onset of darkening occurred not earlier than 2 months after irradiation. With all doses above 1.0 krad there was 100% incidence of darkening after about 5 months storage at ambient temperature. The intensity of darkening increased with length of storage. Very low doses (0.7–1.0 krad) did not prevent sprouting but caused slight darkening. Doses between 2 and 80 krads completely inhibited external sprouting; however, if delayed till 3 months postharvest, these doses failed to prevent sprouting, but did cause severe darkening, which was not dependent on the dose. There was no correlation between the delay in irradiation after harvest and the intensity or incidence of darkening. The length of the dormancy period varied in different years, apparently as a result of different conditions prevailing during crop growth. Differences in the intensity of darkening in different years seem to be connected with this phenomenon.


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