scholarly journals DURATION AND CONCENTRATION OF 1-METHYLCYCLOPROPENE TREATMENT: IMPACT ON RIPENING AND SHELF LIFE OF PARTIALLY RIPENED BANANAS

2020 ◽  
Vol 52 (4) ◽  
pp. 388-398
Author(s):  
F. MORADINEZHAD
Keyword(s):  
Shelf Life ◽  
Quality Parameters ◽  
Common Method ◽  
Internal Quality ◽  
Simultaneous Application ◽  
Ethylene Treatment ◽  
The Third ◽  
And Storage

In order to improve the quality and extend the shelf life of bananas after gassing with ethylene at commercial treatment during transportation and storage the simultaneous application of ethylene and 1-methylcyclopropene were examined. Fruit were treated with 100 µL L-1 of ethylene for two consecutive days as a control, followed by 20 min ventilation each day, or simultaneously exposed to 1-MCP at different concentrations (30, 100 or 300 nL L-1 on the first day or second day, or treated with 1-MCP alone on the third day at 22ºC. Fruit from each treatment were used to evaluate external and internal quality parameters and shelf life. The results showed that shelf life increased significantly, compared to the control when 1-MCP was applied coincidently with ethylene in the second day and reapplied alone in the third day. The highest increase in shelf life (125%) was obtained when 1-MCP was applied on the second day at 30 nL L-1 simultaneously with ethylene and at 300 nL L-1 alone on the third day, compared to the control in both harvest months. We conclude that simultaneous application of 1-MCP is more effective than the more common method of extending banana shelf life through application of 1-MCP after ethylene treatment.

scholarly journals Salep Kullanımının Fermente Türk Sucuğu Kalite Parametreleri Üzerine Etkisi

2018 ◽  
Vol 6 (2) ◽  
pp. 219
Author(s):  
İsmail Gök ◽  
Birol Kılıç ◽  
Cem Okan Özer
Keyword(s):  
Shelf Life ◽  
Storage Period ◽  
Quality Parameters ◽  
Control Group ◽  
Meat Industry ◽  
Treatment Groups ◽  
Ph Values ◽  
Tbars Values ◽  
And Storage ◽  
All Treatment

The aim of this study, the effect of addition to salep at different concentrations (2.5, 5, 7.5 and 10%) into sucuk on physicochemical, textural and sensorial properties were investigated at d fermentation and storage periods (5., 10., 20. ve 30. days). The results indicated that TBARS values gradually increased during fermentation and storage periods in all treatment groups. However, addition of 10% salep decreased TBARS values compared to control group at the end of fermentation and storage period. pH values of sucuks were decreased with addition of salep. Higher L* values were observed in sucuk with 10% salep at the end of the fermentation and storage period. Increasing levels of salep in sucuk formulation caused an increase in hardness and ash values, a decrease in moisture values in sucuk. The results of this study indicated that salep may be used in sucuk manufacture by the meat industry to improve shelf-life and quality parameters of the product.

scholarly journals Use of soybean gum as an emulsifier in diets for commercial laying hens

2019 ◽  
Vol 54 ◽  
Author(s):  
Rosemary Pereira de Pedro Souza ◽  
Antonio Carlos de Laurentiz ◽  
Glaucia Amorim Faria ◽  
Rosemeire da Silva Filardi ◽  
Érica do Santos Mello
Keyword(s):  
Oxidative Stability ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Quality Parameters ◽  
Internal Quality ◽  
Average Weight ◽  
The Cost ◽  
And Storage ◽  
Haugh Unit

Abstract: The objective of this work was to evaluate the influence of the inclusion of soybean (Glycine max) gum in the diet of laying hens on egg production, egg external and internal quality, and economic viability, as well as of temperature and storage time on the oxidative stability of eggs. One hundred and eighty 40-week-old Lohmann-LSL layers were fed 0, 1, 2, 3, 4, and 5% soybean gum in the diet. In the economic analysis, the average productive performance of the layers and the cost of feed were considered. In order to evaluate oxidative stability, eggs were stored at room temperature (~30oC) or refrigerated (5oC) for 0, 7, and 21 days. The inclusion of soybean gum in the diet increased feed intake and also egg production, average weight, and mass. Soybean gum improved external and internal egg quality parameters, but reduced the Haugh unit. Oxidative stability was higher in eggs from hens fed 4% gum, at 5oC, for 21 days; however, the largest economic return was with 1% gum. The inclusion of soybean gum promotes improvements in the production, external and internal quality, and oxidative stability of eggs from commercial laying hens.

scholarly journals Effect of milling speed on the quality and storage stability of maize flour

2016 ◽  
Vol 8 (2) ◽  
pp. 1015-1021
Author(s):  
Gagandeep Kaur Sidhu ◽  
A.K. Singh ◽  
Manpreet Singh
Keyword(s):  
Shelf Life ◽  
Storage Time ◽  
Storage Stability ◽  
Quality Parameters ◽  
Packaging Material ◽  
Maize Flour ◽  
Low Speed ◽  
Light Yellow ◽  
Flour Mill ◽  
And Storage

This work was undertaken to evaluate the effect of milling speed on the quality and shelf life of maize flour. Maize flour was prepared using low speed mini flour mill at 75 and 115 rpm and the results were compared with the flour prepared by commercial flour mill on the basis of recovery of flour, rise in temperature of flour, time taken, particle size distribution and changes in different quality parameters during storage. It was observed from the analysis that the recovery of flour was highest (95.26%) at 75 rpm speed although the time taken was more i.e. 27.27 minutes, but the rise in temperature during milling was very less (12.240C) as compared to commercial mill the temperature rose up to 31.120C. It was noted that the maize flour prepared at low speed was light yellow in color as compared to higher rpm which was dark yellow. The maize flour prepared at 75 rpm can be stored in low density polyethylene LDPE packaging material of (200 gauge) for two months without change in quality parameters. It was observed that the moisture content, protein content, fat content, alcoholic acidity and carbohydrates was significantly affected by storage time, packaging material and milling speed at P<0.05. Therefore, at low speed the storage stability as well as nutritional properties of the flour can be enhanced. The improved shelf life of flour can result in better marketability.

Effects of Ethylene Exposure Temperature on Shelf Life, Composition and Quality of Artificially Ripened Bananas (Musa acuminata AAA, cv. ‘Dwarf Cavendish’)

2005 ◽  
Vol 11 (2) ◽  
pp. 99-105 ◽  
Author(s):  
M. G. Lobo ◽  
M. González ◽  
A. Peña ◽  
A. Marrero
Keyword(s):  
Shelf Life ◽  
Storage Temperature ◽  
Soluble Sugars ◽  
Quality Parameters ◽  
Musa Acuminata ◽  
Ethylene Concentration ◽  
C Storage ◽  
Exposure Temperature ◽  
And Storage

The effects of ethylene exposure temperature, ethylene concentration and post-exposure storage temperature on the ripening processes of bananas were studied. Mature-green bananas were treated for 24h with different ethylene concentrations (5, 50, 500 and 5,000 L/L) at three temperatures (12, 15 and 20°C) and subsequently stored at either 15 or 20°C. No major differences were found among the four ethylene concentrations used, except in the case of the 12°C exposure temperature where the 5 L/L treatment showed little or no effect on ripening. In general, exposure to ethylene at 12°C in all cases resulted in uneven ripening of the fruits. Exposure to ethylene at 15°C (storage temperature 20°C) extended shelf life one or three days (storage temperature 15°C) more than ethylene exposure at 20°C. These differences were accompanied by changes in the respiration pattern of the bananas, their quality parameters (TSS, peel and pulp firmness) and their soluble sugars and organic acids composition. Shelf life of ethylene-treated bananas could reliably be modulated within the range of 6 to 12 days, without any decrease in fruit quality, just by adjusting exposure to ethylene and storage temperature.

Development of the sugar beet quality in the Netherlands since 1980 and introduction of invert sugar as a new parameter for beet quality assessment

2015 ◽  
pp. 95-103 ◽  
Author(s):  
Dirk P. Vermeulen
Keyword(s):  
The Netherlands ◽  
Sugar Beet ◽  
Quality Assessment ◽  
Sugar Content ◽  
Quality Parameters ◽  
Invert Sugar ◽  
Internal Quality ◽  
Glucose Content ◽  
Thick Juice ◽  
Trial Phase

The technological beet quality has been always important for the processors of sugar beet. An investigation into the development of the beet quality in the Netherlands since 1980 has shown that beet quality has improved significantly. Internal quality parameters that are traditionally determined in the beet laboratory, i.e. sugar content, Na, K and -aminoN, all show an improving trend over the years. In the factories, better beet quality has led to lower lime consumption in the juice purification and significantly higher thick juice purity. In 2013, Suiker Unie introduced the serial analysis of the glucose content in beet brei as part of the routine quality assessment of the beet. The invert sugar content is subsequently calculated from glucose content with a new correlation. The background, the trial phase and the first experiences with the glucose analyzer are discussed.

scholarly journals Influence of Two Innovative Packaging Materials on Quality Parameters and Aromatic Fingerprint of Extra-Virgin Olive Oils

Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 929
Author(s):  
Stefano Farris ◽  
Susanna Buratti ◽  
Simona Benedetti ◽  
Cesare Rovera ◽  
Ernestina Casiraghi ◽  
...  
Keyword(s):  
Shelf Life ◽  
Storage Temperature ◽  
Transmission Rate ◽  
Virgin Olive Oil ◽  
Quality Parameters ◽  
Packaging Materials ◽  
Transparent Plastic ◽  
Virgin Olive Oils ◽  
Oxygen Transmission Rate ◽  
Olive Oils

The performance of two innovative packaging materials was investigated on two Sardinian extra-virgin olive oils (Nera di Gonnos and Bosana). In particular, a transparent plastic film loaded with a UV-blocker (packaging B) and a metallized material (packaging C) were compared each other and to brown-amber glass (packaging A). During accelerated shelf-life tests at 40 and 60 °C, the evolution of quality parameters (i.e., acidity, peroxide value, K270, and phenolic content) was monitored, together with the aromatic fingerprint evaluated by electronic nose. Packaging B resulted in the best-performing material in protecting oil from oxidation, due to its lower oxygen transmission rate (0.1 ± 0.02 cm3/m2 24 h) compared to packaging C (0.23 ± 0.04 cm3/m2 24 h). At the end of storage, phenolic reduction was on average 25% for packaging B and 58% for packaging C, and the aromatic fingerprint was better preserved in packaging B. In addition, other factors such as the sanitary status of the olives at harvesting and the storage temperature were demonstrated to have a significant role in the shelf life of packaged extra-virgin olive oil.

Practical prescribing

1987 ◽  
Vol 25 (20) ◽  
pp. 80-80
Author(s):  
Martin J Brodie ◽  
Ian Harrison
Keyword(s):  
Side Effects ◽  
Drug Interactions ◽  
Shelf Life ◽  
Text Book ◽  
The Third ◽  
New Drug ◽  
Making Choices ◽  
Treatment Policies ◽  
Accessible Form

This book is a practical manual for the prescriber rather than a text book. The first chapter usefully explains pharmacological terms which are used later in the book. This is followed by three sections concerned with choosing drugs. The first section gives a list of ‘best buys’ for common complaints, the second looks at treatment policies and the third gives basic pharmacological information to help in making choices. Side-effects and drug interactions are presented in the next two chapters in a readily accessible form. The final chapter, called ‘Cautions,’ has some useful information not readily found elsewhere including data on teratogenesis and shelf-life of formulations. It also suggests which drugs we should stop using, and discusses factors to consider before using a new drug.

Quality parameters and shelf-life of smoked Dalmatian dry-cured ham packed in bio-based and plastic bilayer pouches

2021 ◽  
Vol 94 ◽  
pp. 101889
Author(s):  
Mia Kurek ◽  
Ivna Poljanec ◽  
Nives Marušić Radovčić ◽  
Kata Galić ◽  
Helga Medić
Keyword(s):  
Shelf Life ◽  
Quality Parameters ◽  
Dry Cured Ham
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