THE EFFECT OF USING FROZEN RAW MATERIAL AND DIFFERENT SALT RATIOS ON THE QUALITY CHANGES OF DRY SALTED ATLANTIC BONITO (LAKERDA) AT TWO STORAGE CONDITIONS

Recent trends in the food industry combined with novel methods in agriculture could transform rowan into a valuable raw material with potential technological applications. Thus, the aim of this research was to investigate the content of bioactive compounds in its fruits and to assess the color and antioxidant stability of the extracts prepared from such fruits during various thermal treatments and at different pH and ionic strength values. Various spectrophotometric methods, HPLC, and capillary electrophoresis were used to quantify the concentrations of bioactive compounds—polyphenols, carotenoids, organic acids, and to assess antioxidant activity and color. The results show that rowan berries contain circa 1.34–1.47 g/100 g of polyphenols among which include catechin, epicatechin, ferulic acid methyl ester, procyanidin B1, etc.; ca 21.65 mg/100 g of carotenoids including zeaxanthin, β-cryptoxanthin, all-trans-β-carotene, and various organic acids such as malic, citric, and succinic, which result in a high antioxidant activity of 5.8 mmol TE/100 g. Results also showed that antioxidant activity exhibited high stability when the extract was subjected to various thermal treatments, pHs, and ionic strengths, while color was mainly impacted negatively when a temperature of 100 °C was employed. This data confirms the technological potential of this traditional, yet often overlooked species.

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The effects of storage conditions on quality changes of table eggs

Journal of Consumer Protection and Food Safety ◽

10.1007/s00003-020-01299-6 ◽

2020 ◽

Author(s):

Umut Sami Yamak ◽

Musa Sarica ◽

Kadir Erensoy ◽

Volkan Ayhan

Keyword(s):

Storage Conditions ◽

Quality Changes

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Paper Analyses of Tocharian manuscripts of the Pelliot Collection stored in the National Library of France (Bibliothèque nationale de France)

Z Badań nad Książką i Księgozbiorami Historycznymi ◽

10.33077/uw.25448730.zbkh.2020.630 ◽

2020 ◽

Vol 14 (3) ◽

pp. 387-410

Author(s):

Emilie Arnaud-Nguyen

Keyword(s):

Central Asia ◽

Manufacturing Process ◽

Storage Conditions ◽

Paper Analysis ◽

Raw Material ◽

National Library ◽

Local Adaptations ◽

Preliminary Results ◽

Paper Manufacturing ◽

The Many

This paper describes the preliminary results of my PhD research within the ERC project “HisTochText”. The aim is to perform macroscopic analyses of archaeological papers from the Pelliot Collection. They are stored in the National Library of France (Bibliothèque nationale de France). Most were discovered in the oasis kingdom of Kucha, inscribed in an ancient Indian writing, brāhmῑ. The language was unknown in France. Kucha was a meeting place for many influences both western and eastern, insofar as paper analysis seeks to determine technological influences and local adaptations. Macroscopic analyses rely on traces found in the material of the paper which may be the result of the many stages in the life of the document: the raw material, the manufacturing process, the conditions of use and the storage conditions, both ancient and modern. To this day 350 fragments have been observed. Little is known about papermaking in Central Asia. As a consequence, every shred of information must be examined in order to determine the differences from and similarities to paper manufacturing in Xinjiang.

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Influence of drying methods on preservation of biologically active substances of garden strawberries being raw material for food enrichment

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/845/1/012094 ◽

2021 ◽

Vol 845 (1) ◽

pp. 012094

Author(s):

I M Novikova ◽

O M Blinnikova ◽

L G Eliseeva ◽

D A Blinnikova

Keyword(s):

Shelf Life ◽

Storage Period ◽

Storage Conditions ◽

Biologically Active Substances ◽

Biologically Active ◽

Raw Material ◽

Drying Methods ◽

Urgent Problem ◽

And Storage ◽

Active Substances

Abstract At present, the preservation of the consumer properties of berry products is an urgent problem. Use of fresh garden strawberries is limited by a short storage period and seasonality. Under optimal storage conditions in a normal atmosphere, the average shelf life of strawberries is from 2 to 9 days depending on the variety. To meet the needs of the population in garden strawberries and meet the physiological needs in a unique complex of biologically active substances, strawberries are subjected to different processing methods. Drying being a type of fruit and berry products processing has the following advantages: a significant increase in the shelf life of products, a decrease in the mass and storage volumes of dried berries, preservation of minerals, carbohydrates, dietary fiber, antioxidants, bioflavonoids and many biologically active compounds in berries. Modern drying technologies allow preserving the content of essential vitamins to its full extent. Comparison of two technologies for drying garden strawberries has established that vitamins and other biologically active substances are well preserved in berries. Berries dried by convective vacuum-impulse method (CVI) are recommended to be used for food enrichment.

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Valorization of Tomato Surplus and Waste Fractions: A Case Study Using Norway, Belgium, Poland, and Turkey as Examples

Foods ◽

10.3390/foods8070229 ◽

2019 ◽

Vol 8 (7) ◽

pp. 229 ◽

Cited By ~ 7

Author(s):

Løvdal ◽

Droogenbroeck ◽

Eroglu ◽

Kaniszewski ◽

Agati ◽

...

Keyword(s):

Animal Feed ◽

Economic Loss ◽

Storage Conditions ◽

Raw Material ◽

Tomato Production ◽

Sustainable Food ◽

Processing Technologies ◽

Tomato Processing ◽

Health Promoting ◽

Negative Environmental Impact

There is a large potential in Europe for valorization in the vegetable food supply chain. For example, there is occasionally overproduction of tomatoes for fresh consumption, and a fraction of the production is unsuited for fresh consumption sale (unacceptable color, shape, maturity, lesions, etc.). In countries where the facilities and infrastructure for tomato processing is lacking, these tomatoes are normally destroyed, used as landfilling or animal feed, and represent an economic loss for producers and negative environmental impact. Likewise, there is also a potential in the tomato processing industry to valorize side streams and reduce waste. The present paper provides an overview of tomato production in Europe and the strategies employed for processing and valorization of tomato side streams and waste fractions. Special emphasis is put on the four tomato-producing countries Norway, Belgium, Poland, and Turkey. These countries are very different regards for example their climatic preconditions for tomato production and volumes produced, and represent the extremes among European tomato producing countries. Postharvest treatments and applications for optimized harvest time and improved storage for premium raw material quality are discussed, as well as novel, sustainable processing technologies for minimum waste and side stream valorization. Preservation and enrichment of lycopene, the primary health promoting agent and sales argument, is reviewed in detail. The European volume of tomato postharvest wastage is estimated at >3 million metric tons per year. Together, the optimization of harvesting time and preprocessing storage conditions and sustainable food processing technologies, coupled with stabilization and valorization of processing by-products and side streams, can significantly contribute to the valorization of this underutilized biomass.

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Laser-light backscattering imaging approach in monitoring and classifying the quality changes of sweet potatoes under different storage conditions

Postharvest Biology and Technology ◽

10.1016/j.postharvbio.2020.111163 ◽

2020 ◽

Vol 164 ◽

pp. 111163

Author(s):

Philip Donald C. Sanchez ◽

Norhashila Hashim ◽

Rosnah Shamsudin ◽

Mohd Zuhair Mohd Nor

Keyword(s):

Laser Light ◽

Storage Conditions ◽

Quality Changes ◽

Sweet Potatoes ◽

Imaging Approach

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Changes in the content of organic acids and inorganic anions in sugar beet during long-term storage

Sugar Industry ◽

10.36961/si17974 ◽

2016 ◽

pp. 760-764 ◽

Cited By ~ 1

Author(s):

Maciej Wojtczak ◽

Aneta Antczak-Chrobot ◽

Paulina Miko ◽

Magdalena Molska ◽

Ilona Baszczyk ◽

...

Keyword(s):

Sugar Beet ◽

Storage Conditions ◽

Denitrifying Bacteria ◽

Raw Material ◽

Storage Duration ◽

Long Term Storage ◽

Term Storage ◽

Acetic Acids

Due to the prolongation of the period of the sugar campaign, it is necessary to optimize the storage conditions, so that changes in the quality of the raw material could be minimized. The aim of this study was to determine the effect of storage duration and temperature on changes in the composition of sugar beet. The study presents the changes in the content of glucose, fructose, raffinose, lactic and acetic acids, nitrates and nitrites as well as in the content of the total number of mesophilic bacteria, denitrifying bacteria and spores of denitrifying bacteria during storage under various conditions.

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Kinetics of Quality Changes ofPangasiusFillets at Stable and Dynamic Temperatures, Simulating Downstream Cold Chain Conditions

Journal of Food Quality ◽

10.1155/2017/2865185 ◽

2017 ◽

Vol 2017 ◽

pp. 1-9 ◽

Cited By ~ 3

Author(s):

Nga Mai ◽

Van Huynh

Keyword(s):

Storage Time ◽

Sensory Quality ◽

Storage Conditions ◽

Cold Chain ◽

Quality Changes ◽

Acceptable Limit ◽

Chain Conditions ◽

Supporting Tool ◽

Kinetics Of ◽

Microbiological Analyses

This study was about the quality changes ofPangasiusfillets during storage under simulated temperature conditions of downstream cold chain. Sensory, chemical, and microbiological analyses were conducted over storage time and bacterial growth was modelled. Sensory quality index (QI), at five stable (1, 4, 9, 15, and 19 ± 1°C) and three dynamic temperatures, progressed faster at higher temperatures, especially with sooner temperature abuses. Total volatile basic nitrogen remained under the acceptable limit throughout all the storage conditions. Total viable psychrotrophic counts (TVC) were around 5.68 ± 0.24 log CFU g−1at the beginning and exceeded the limit of 6 log CFU g−1after 216, 96, 36, 16, and 7 h at 1, 4, 9, 15, and 19 ± 1°C, respectively. Meanwhile,Pseudomonascounts started at 3.81 ± 0.53 log CFU g−1and reached 4.60–6.36 log CFU g−1by the time of TVC rejection. Since lower shelf lives were given by TVC rather than QI, it should be appropriate to base the product shelf life on the TVC acceptable limit. Kinetics models based on the Baranyi and Roberts and square root models, developed for TVC andPseudomonasspp., gave acceptable bacterial estimations at dynamic temperatures, with over 80% of observed counts within the acceptable simulation zone, revealing promising model applicability as a supporting tool for cold chain management. However, further improvement and validation of the models are needed.

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Maturation of Cup Lump Natural Rubber: Growth of Microorganisms and Effects on Quality Properties under Alternative Storage Conditions

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.844.395 ◽

2013 ◽

Vol 844 ◽

pp. 395-398

Author(s):

Jutharat Intapun ◽

Naridsara Sontikun ◽

Arthit Khowaien

Keyword(s):

Natural Rubber ◽

Storage Condition ◽

Storage Conditions ◽

Raw Material ◽

Microbial Populations ◽

Quality Properties ◽

Microorganism Population ◽

Global Demand ◽

Tire Production ◽

Intermediate Storage

Natural rubber is the main raw material in various rubber products. STR 20 is the most produced type of raw natural rubber in primary rubber production, due to its high global demand for tire production. In the STR 20 standard process, mainly raw cup lump is used, and the microbial populations in the cup lump affect the properties of the raw material during intermediate storage that cannot be avoided. The goal of this study was to evaluate the extent of such maturation effects, and to examine alternative practical storage condition extremes to determine which one is the best, based on quality characteristics. We screened microorganisms in matured cup lump, and evaluated the key properties determining raw material quality, under various maturation conditions. Maturing cup lump under closed air conditions gave a high population (1.69x1010 CFU/ml) of microorganisms at 3 to 7 days, and the population decreased with further maturation to 3.45x105CFU/ml at 28 days. Raw rubber quality properties (pH, Initial Plasticity and Plasticity Retention Index) were best when stored under shade in spraying water, and worse with storage under closed bag conditions. The best thermal stability and the smallest microorganism population were found in acid coagulated cup lump. The results suggest that cup lump should be acid coagulated, and stored in the shade in spraying water, for best results in STR20 production.

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Optimization of Storage Conditions of the Medicinal Herb Ilex asprella against the Sterigmatocystin Producer Aspergillus versicolor Using Response Surface Methodology

Toxins ◽

10.3390/toxins10120499 ◽

2018 ◽

Vol 10 (12) ◽

pp. 499

Author(s):

Xiaofang Lu ◽

Chaoquan Luo ◽

Jianyong Xing ◽

Zhengzhou Han ◽

Tong Li ◽

...

Keyword(s):

Response Surface Methodology ◽

Response Surface ◽

Southern China ◽

Storage Conditions ◽

Raw Material ◽

Aspergillus Versicolor ◽

Total Saponin ◽

Different Temperatures ◽

Effects Of Temperature ◽

Central Composite

The root of Ilex asprella is a commonly used herb in Southern China, and also constitutes the main raw material of Canton herbal tea. I. asprella is readily contaminated by mildew because of rich nutrients. Aspergillus versicolor producing sterigmatocystin is one of the most common molds that contaminate foodstuffs and medicinal herbs. Previous study on the evaluation of fungal contamination on samples of I. asprella revealed that A. versicolor was the dominant contaminant. In this study, experiments based on response surface methodology combined with central composite design were carried out to determine the optimal storage conditions of I. asprella to minimize the contamination of sterigmatocystin. The herb, manually innoculated with A. versicolor, was stored under different temperatures (20–40 °C) and humidity (80–95%) for seven days. The effects of temperature and humidity were evaluated using total saponin, polysaccharide and the sterigmatocystin levels as quality indexes. The results showed that A. versicolor grew quickly and produced large amounts of sterigmatocystin on I. asprella, at humidity ranging from 85% to 90% and temperatures above 26 °C. Meanwhile, total saponin and polysaccharide amounts were reduced significantly. These findings suggested that I. asprella samples should be stored in an environment with humidity and temperature below 85% and 26 °C, respectively, to reduce A. versicolor growth and sterigmatocystin production.

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