Methodology for the accelerated determination of the shelf life of wheat and rye grain

2021 ◽  
pp. 768-774
Author(s):  
K.B. Gurieva ◽  
S.L. Beletskiy ◽  
N.A. Khaba
Keyword(s):  
Shelf Life ◽  
Storage Temperature ◽  
Food Products ◽  
Acid Number

An overview of methods for determining the shelf life of food products is given. An accelerated method, which includes storing grain at a temperature of 20–40 °C, regularly determining the acid number of fats, while using samples from at least three batches of grain of the same crop, has been developed. Based on the obtained results, the estimated shelf life at any storage temperature is determined by calculation using the “Reserve-forecast” program, taking into account that the maximum permissible value of the acid number of fats is: 25 mg KOH/g of fat — for wheat, 23 mg KOH/g fat — for rye. The proposed methodology makes it possible to shorten the duration and reduce the complexity of determining the grain shelf life.

Oxidation Kinetics of Hazelnut Shelf-Life Prediction Model

2012 ◽  
Vol 200 ◽  
pp. 466-469
Author(s):  
Wen Li Dong ◽  
Xue Gong ◽  
Jing Dong ◽  
Ling Jin ◽  
Yu Xiang Wei
Keyword(s):  
Prediction Model ◽  
Shelf Life ◽  
Peroxide Value ◽  
Storage Temperature ◽  
Order Kinetic ◽  
Shelf Life Prediction ◽  
Changing Patterns ◽  
Kinetics Of ◽  
Life Prediction Model

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.

scholarly journals Shelf Life of Nori from Gracilaria sp. with Polypropylene (PP) Packaging Based on the Accelerated Shelf Life Test Method

2020 ◽  
pp. 50-60
Author(s):  
Sapinatun Namira ◽  
Evi Liviawaty ◽  
Isni Nurruhwati ◽  
Eddy Afrianto
Keyword(s):  
Shelf Life ◽  
Storage Temperature ◽  
Test Method ◽  
Critical Parameters ◽  
Life Test ◽  
Arrhenius Model ◽  
Texture Parameters ◽  
Calculation Results ◽  
Clear Plastic

This research was conducted at the Laboratory of Fisheries Products Processing, Faculty of Fisheries and Marine Sciences, Padjadjaran University, Jatinangor, West Java, Indonesia. The purpose of this research was to determine the shelf life of Nori from Gracilaria sp. with the Accelerated Shelf Life Test (ASLT) method Arrhenius Model using Polypropylene (PP) packaging. Gracilaria is a genus of red algae (Rhodophyta) used as a food for humans and various species of shellfish. Polypropylene (PP) is a shiny, clear plastic with good optical properties and tensile resistance. The determination of the shelf life of the ASLT method is carried out using parameters of environmental conditions that can accelerate the process of product quality degradation, namely by storing the product at several temperatures above normal storage temperature. The observations used in determining the shelf life of Gracilaria sp. using a sensory test and a water content test with storage for 35 days, at a temperature of 25°C and 35°C. The calculation results of the Arrhenius model used texture parameters as critical parameters because those had the lowest Activation Energy (Ea) in determining the shelf life of Gracilaria sp. which is packaged using PP plastic. The results showed the value used for determining the shelf life of nori Gracilaria sp. namely texture parameters based on the order 0 reaction with the Arrhenius plot Ln K = -2.0381 - 214.63 (1 / T) and Ea of 1784.6485. The shelf life of nori Gracilaria sp. was found to be elongated if stored at room temperature of (25°C) which was around 94 days.

scholarly journals SHELF LIFE OF NORI FROM Gracilaria sp. WITH ALUMUNIUM FOIL PACKAGING BASED ON THE ACCELERATED SHELF LIFE TEST METHOD

2021 ◽  
Vol 2 (1) ◽  
pp. 1-10
Author(s):  
Evi Liviawaty ◽  
Sapinatun Namira ◽  
Subiyanto Subiyanto ◽  
Eddy Afrianto
Keyword(s):  
Shelf Life ◽  
Critical Parameter ◽  
Storage Temperature ◽  
Arrhenius Plot ◽  
Aluminum Foil ◽  
Test Method ◽  
Life Test ◽  
Arrhenius Model ◽  
Quality Degradation

This research was conducted at the Laboratory of Fisheries Products Processing, Faculty of Fisheries and Marine Sciences, Padjadjaran University, Jatinangor. The purpose of this research is to determine the shelf life of Nori from Gracilaria sp. with the Accelerated Shelf Life Test (ASLT) method Arrhenius Model using Aluminum Foil packaging. Aluminum foil packaging is a package composed of hermetic, flexible, and opaque metal so that it has high protection properties against water vapor, light, grease and gas. The determination of the shelf life of the ASLT method is carried out using parameters of environmental conditions that can accelerate the process of product quality degradation, namely by storing the product at several temperatures above normal storage temperature. The observations used in determining the shelf life of Gracilaria sp. using a sensory test and a water content test with storage for 35 days, at a temperature of 25oC and 35oC. The result of the Arrhenius model calculation, the appearance parameter is selected as the critical parameter because it has the lowest Activation Energy (Ea) in determining the shelf life of Gracilaria sp. which is packaged using PE plastic. The results show that the parameters used to determine the shelf life of the product are the taste parameters based on the order 1 reaction with the Arrhenius Plot Ln K = 0.026 – 1318.4 (1 / T) and Ea of 2619.66 Kj/mol. The shelf life of Nori Gracilaria sp. if stored at 25oC temperature is 89 hari 7 jam.

scholarly journals Determination of Shelf-life of Black Mini Tomato Based on Maturity and Storage Temperature

2015 ◽  
Vol 33 (5) ◽  
pp. 687-696 ◽  
Author(s):  
Mehea Park ◽  
Jeongmin Seo ◽  
Heeyeon Won ◽  
Jongbun Seo ◽  
Doogyung Moon ◽  
...  
Keyword(s):  
Shelf Life ◽  
Storage Temperature ◽  
And Storage

scholarly journals Modified Atmosphere and Vacuum Packaging to Extend the Shelf Life of Respiring Food Products

1992 ◽  
Vol 2 (3) ◽  
pp. 303-309 ◽  
Author(s):  
L.G.M. Gorris ◽  
H.W. Peppelenbos
Keyword(s):  
Shelf Life ◽  
Product Quality ◽  
Fruits And Vegetables ◽  
Storage Temperature ◽  
Food Products ◽  
Packaging Material ◽  
Vacuum Packaging ◽  
Modified Atmosphere ◽  
Microbiological Safety ◽  
Gas Atmosphere

There has been a recent upsurge in the application of modified atmosphere and vacuum packaging to extend the shelf life of food products that rapidly deteriorate. Although these techniques are mostly used with nonrespiring products, both offer considerable prospects for respiring products as well. Because not all commodities respire at the same pace, packaging conditions, such as the initial gas atmosphere applied, the type of packaging material used, and the storage temperature, require special consideration. Choosing the wrong packaging conditions may lead to loss of product quality and also may impair the microbiological safety normally associated with fresh fruits and vegetables. This paper stresses the importance of these considerations with modified atmosphere and vacuum packaging systems.

scholarly journals Experimental accelerated shelf life determination of a ready-to-eat processed food

2019 ◽  
Vol 7 (4) ◽  
Author(s):  
M. Naceur Haouet ◽  
Mauro Tommasino ◽  
Maria Lucia Mercuri ◽  
Ferdinando Benedetti ◽  
Sara Di Bella ◽  
...  
Keyword(s):  
Activation Energy ◽  
Shelf Life ◽  
Food Products ◽  
Food Preparation ◽  
Processed Food ◽  
Life Test ◽  
Life Saving ◽  
Life Tests

The most direct way to estimate the shelf life of a product is to conduct simulation tests which are time consuming and expensive. Conversely, accelerated shelf life tests can be successfully used for stable products having long expected shelf life. The aim of the study was directed to verify the possibility to apply an accelerated shelf life test to perishable food products having a short-expected shelf life, such as a new ready-to-eat processed food preparation, composed mainly by cereals, tuna and chicken, packed in thermo-sealed trays and pasteurised. Different samples of the product were stored in thermal abuse conditions, collected periodically and subjected to determinations of TVB-N, pH and sensorial characteristics. Q10 and activation energy were calculated allowing to obtain a predictive evaluation of the product shelf life at the 4°C recommended temperature. The product shelf life was assessed at 26 days vs the 30 days expected by the manufacturer, showing the possibility to apply successfully ASLT for products having short shelf life, saving both time and money.

scholarly journals Determination of Greening and Shelf Life of Potato Based on Washing and Storage Temperature Conditions

2017 ◽  
Vol 62 (1) ◽  
pp. 66-72
Author(s):  
Su Jeong Kim ◽  
◽  
Hwang Bae Sohn ◽  
Su Young Hong ◽  
Jung Hwan Nam ◽  
...  
Keyword(s):  
Shelf Life ◽  
Storage Temperature ◽  
Temperature Conditions ◽  
And Storage

scholarly journals Determination of Galendo’s Shelf Life on Various of Storage Temperatures by Arrhenius Method

2021 ◽  
Vol 3 (4) ◽  
pp. 141-152
Author(s):  
Asep Dedy Sutrisno ◽  
Wisnu Cahyadi
Keyword(s):  
Shelf Life ◽  
Storage Temperature ◽  
Aluminum Foil ◽  
Peroxide Number ◽  
Rancid Odor ◽  
Test Parameter ◽  
Deterioration Rate ◽  
A Value ◽  
And Storage

This study aims to estimate the shelf life by applying the Arrhenius formula model to "galendo" which is vacuum packed and stored at various temperatures. Estimation of the shelf-life limit of galendos was carried out by measuring the peroxide number and sensory values ​​of galendos which were deliberately kept open without being packed at room temperature (25 ○C). The sensory values ​​used as the threshold for consumer rejection of the level of galendo's rancid odor were achieved on the 27th day of storage and the current peroxide count value was 42.2724 meq/kg. Galendo which was vacuum packed with aluminum foil and stored at various temperatures of 15 ○C, 25 ○C, and 35 ○C, then the shelf life was determined using the Arrhenius and Q10 models based on the parameters of the total peroxide number (TPN) and the total microbial content. Based on the experiment in this study, the estimation results of galendo's shelf life based on the total peroxide number (TPN) test parameter show that storage at 15 ○C has a shelf life of 83 days with a deterioration rate (k) of 0.0207, storage at 25 ○C shelf life 67 days with a deterioration rate (k) 0.0247, and storage at a temperature of 35 ○C for 58 days with a deterioration rate (k) 0.0286. The rate of quality degradation with a value of Q10 (15 oC - 25 oC) of 1.23 and a value of Q10 (25 oC - 35 oC) of 1.16. The higher the storage temperature, the higher the microorganism content.

Determination of Preservative Sodium Benzoate in Selected Samples of Fruit Juices and Squashes

2020 ◽  
pp. 27-32
Author(s):  
OJS Admin
Keyword(s):  
Shelf Life ◽  
Sodium Benzoate ◽  
Food Products ◽  
Fruit Juices

Preservatives are used to preserve and enhance the shelf life of food products. Sodium benzoate is more commonly used to preserve fruit juices and squashes.

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