scholarly journals Effect of a Hypoxia-Controlled Atmosphere Box on Egg Respiration Intensity and Quality

2021 ◽  
Vol 12 (1) ◽  
pp. 380
Author(s):  
Yixiao Ma ◽  
Xianbo Wang ◽  
Yaning Tian ◽  
Qiaohua Wang
Keyword(s):  
Egg Quality ◽  
Storage Conditions ◽  
Egg White ◽  
Plate Count ◽  
Controlled Atmosphere ◽  
Low Oxygen ◽  
O2 Concentration ◽  
Egg Storage ◽  
And Control

Egg preservation is an important factor during storage and transportation. Fresh eggs were stored in boxes in a controlled atmosphere with an O2 concentration of 0% O2 + 100% nitrogen (N2), 5% O2 + 95% N2, 10% O2 + 90% N2, 15% O2 + 85% N2, and 20% O2 + 80% N2, and the effects of these storage conditions on large quantities of eggs were studied. The respiratory intensity and quality of eggs during storage were measured. We chose the weight loss rate of eggs, Haugh unit, pH, and the egg white total plate count as the characteristic indices of egg quality. We compared the changes in egg quality during and after storage at different O2 concentrations versus that at 25 °C. The stages were evaluated using the TOPSIS method to sort egg quality, and the optimal O2 concentration was selected. FLUENT was used to simulate and control the atmospheric requirements. Our findings showed that eggs stored in an air-conditioning chamber with O2 concentration ≤10% exhibited weak respiratory intensity (0–1 mg/(kg·h)). The rates of decrease in loss of egg weight and Haugh units were smaller. There were significant differences in the pH of egg white stored in different O2 concentrations (p < 0.05). Reducing the O2 concentration in the egg-storage environment reduced the number of colonies in eggs and had a positive effect on egg preservation. Simulations using FLUENT revealed that only 1200 s were required to achieve the low-oxygen environment in the controlled atmosphere box (1.5 m × 1 m × 1 m). The storage environment of 5% O2 + 95% N2 had the best preservation effect on eggs. This approach is associated with low costs in practical application and can potentially be used for egg storage and transport.

scholarly journals Influence of 1-Methylcyclopropene and ULO Conditions on Sensory Characteristics of Apple Fruit Grown in Latvia

2016 ◽  
Vol 24 (1) ◽  
pp. 37-46 ◽  
Author(s):  
Karina Juhņeviča-Radenkova ◽  
Vitalijs Radenkovs
Keyword(s):  
Sensory Quality ◽  
Storage Conditions ◽  
Quality Parameters ◽  
Apple Fruit ◽  
Sensory Characteristics ◽  
Controlled Atmosphere ◽  
Low Oxygen ◽  
Long Term Storage ◽  
Storage Technologies

Abstract The aim of the study was to evaluate the influence of 1-methylcyclopropene (1-MCP) treatment and ultra-low oxygen (ULO) storage conditions on the sensory characteristics of apples. Two apple storage technologies were tested in this study: cold storage under traditional conditions in combination with 1-MCP treatment, and ULO storage with two different compositions of a gas mixture. Apples were stored for 6 months. After storage, the sensory characteristics were analysed. Sensory evaluation showed that storage technology affected the sensory characteristics and panelists’ acceptability. Distinctive differences were found between apples stored under controlled atmosphere and traditional conditions. Trained panelists highlighted that samples stored under controlled atmosphere had pronounced juiciness and color, while 1-MCP-treated apples stored in cold were sweeter and more aromatic. Apples of the autumn cultivar ‘Auksis’, was perceived considerably higher after harvest and before long-term storage, compared with other cultivars. During 6 months of storage in controlled atmosphere, the sensory quality of these apples remained intact. Also, the sensory quality of fruit of the winter cultivar ‘Sinap Orlovskij’ throughout 6 months of its storage in controlled atmosphere remained intact. Besides, it was noticed that apples stored in controlled atmosphere were juicier and more aromatic with intense color. There is a positive effect of 1-MCP treatment on maintenance of apple quality stored in normal atmosphere for 6 months. With regard to some quality parameters and sensory attributes, 1-MCP-treated apples stored under normal atmosphere are comparable to those stored under ULO conditions.

scholarly journals Variation of Triterpenes in Apples Stored in a Controlled Atmosphere

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3639
Author(s):  
Aurita Butkeviciute ◽  
Jonas Viskelis ◽  
Mindaugas Liaudanskas ◽  
Pranas Viskelis ◽  
Ceslovas Bobinas ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Hplc Analysis ◽  
Storage Conditions ◽  
Quantitative Composition ◽  
Controlled Atmosphere ◽  
Apple Peel

Apples are seasonal fruits, and thus after harvesting apples of optimal picking maturity, it is important to prepare them properly for storage and to ensure proper storage conditions in order to minimize changes in the chemical composition and commercial quality of the apples. We studied the quantitative composition of triterpenic compounds in the whole apple, apple peel and apple flesh samples before placing them in the controlled atmosphere (CA) chambers, and at the end of the experiment, 8 months later. HPLC analysis showed that highest total amount of triterpenic compounds (1.99 ± 0.01 mg g−1) was found in the whole apple samples of the ‘Spartan’ cultivar stored under variant VIII (O2—20%, CO2—3%, N2—77%) conditions. Meanwhile, the highest amount of triterpenic compounds (11.66 ± 0.72 mg g−1) was determined in the apple peel samples of the ‘Auksis’ cultivar stored under variant II (O2—5%, CO2—1%, N2—94%) conditions. In the apple peel samples of the ‘Auksis’ cultivar stored under variant I (O2—21%, CO2—0.03%, N2—78.97%) conditions, the amount of individual triterpenic compounds (ursolic, oleanolic, corosolic, and betulinic acids) significantly decreased compared with amount determined before the storage. Therefore, in the apple flesh samples determined triterpenic compounds are less stable during the storage under controlled atmosphere conditions compared with triterpenic compounds determined in the whole apple and apple peel samples.

scholarly journals Quality and stability of eggs from laying hens fed with organic minerals and lycopene

2015 ◽  
Vol 46 (1) ◽  
pp. 157-162 ◽  
Author(s):  
Flavia Kleszcz da Cruz ◽  
Elis Regina de Moraes Garcia ◽  
André Luiz Julien Ferraz ◽  
Karina Márcia Ribeiro de Souza ◽  
William Britez Feliciano ◽  
...  
Keyword(s):  
Storage Time ◽  
Laying Hens ◽  
Egg Quality ◽  
Storage Conditions ◽  
Experimental Unit ◽  
Randomized Design ◽  
Organic Minerals ◽  
Haugh Unit ◽  
Mineral Sources

ABSTRACT: This study aimed to evaluate the effect of using lycopene and organic minerals in diets for laying hens on the egg quality and stability of eggs stored for 30 days under different storage environments. An entirely randomized design was adopted in 2x3x3 factorial scheme (mineral sources x lycopene levels x storage periods) with six replicates of eight hens per experimental unit. The experimental diets were: feed containing inorganic minerals (IM) without added lycopene; IM with added lycopene (400mg kg-1); IM with added lycopene (800mg kg-1); organic minerals (OM) without added lycopene; OM with added lycopene (400mg kg-1); OM with added lycopene (800mg kg-1). After 112 days of feeding experimental diets, it was selected 60 eggs treatment-1, which were later labeled, stored in room and refrigerated temperature, and subjected to different storage periods (0, 15 and 30 days). Variables analyzed were: Haugh unit, yolk index, yolk color, albumen and yolk pH, and lipid oxidation (TBARS). Stability of eggs is not altered as a function of mineral sources and levels of lycopene studied. However, increasing storage time affects the quality of the eggs of laying hens at both storage conditions.

scholarly journals The effects of rapid chilling and storage conditions on the quality of Brigitta Blue cultivar highbush blueberries (Vaccinium corymbosum L.)

2014 ◽  
Vol 26 (2) ◽  
pp. 147-153 ◽  
Author(s):  
Karolina Kozos ◽  
Ireneusz Ochmian ◽  
Piotr Chełpiński
Keyword(s):  
Storage Conditions ◽  
Vaccinium Corymbosum ◽  
Fresh Fruit ◽  
Controlled Atmosphere ◽  
Controlled Atmosphere Storage ◽  
Cold Room ◽  
Highbush Blueberries ◽  
Atmosphere Storage ◽  
And Storage

ABSTRACT Controlled atmosphere storage allows for the long-term and short-term storage of fruit without a significant decrease in quality, resulting in a longer shelflife of fresh fruit. The Department of Horticulture at the West Pomeranian University of Technology in Szczecin conducted research on the effects of post-harvest precooling (3-4°C within two hours) and storage conditions (conventional cold room and controlled atmosphere storage) on fruit firmness, chemical composition, colour and weight loss. After six weeks of storage, it was found that the quality of fruit had declined. In comparison with fresh fruit, the harvest was found to have lost weight and darkened in colour. In addition, a decrease in firmness and the content of ascorbic acid and polyphenolic compounds was also observed. The fruits that were stored in a cold room with a controlled atmosphere and rapidly chilled immediately after harvest were the least affected. In addition, the research showed that there was a high correlation between the anthocyanin index and the polyphenol content in the fruits. To maintain the high quality of the fruit, the fruit must be very rapidly cooled soon after harvest and stored under optimal conditions - a cold room with a controlled atmosphere.

Effect of Mechanical Damages and Storage Conditions on Quality of Markies cv. Potatoes for Processing

2019 ◽  
pp. 1-5
Author(s):  
Dreice Nascimento Gonçalves ◽  
Luciana Gomes Soares ◽  
Ariana Mota Pereira ◽  
Paula Acácia Silva Ramos ◽  
Maria Eduarda Da Silva Guimarães ◽  
...  
Keyword(s):  
Soluble Sugar ◽  
Mechanical Damage ◽  
Storage Conditions ◽  
Reducing Sugar ◽  
Control Treatment ◽  
Experimental Unit ◽  
Total Soluble Sugar ◽  
And Control ◽  
And Storage

Aims: Evaluate whether mechanical damage and storage conditions affect the quality of the ‘Markies’ potato for processing. Study Design: The experimental design was the completely randomized, in the scheme of split-plots. The plots were composed of treatments with and without mechanical damage and the subplots were made up by the evaluation times, with 5 replicates, where the experimental unit was composed of 2 tubers. Place and Duration of Study: Tubers of the ‘Markies’ cultivar from the producing region of Perdizes, State of Minas Gerais, were planted in June 2016 and harvested in October 2016. Methodology: The tubers were stored for 2 months at 8°C, and further divided into treatment with damage, in which the tubers were subjected to impact and abrasion; and control treatment, in which the tubers were not damaged. After that, they were stored at 28°C and evaluated for their loss of loss of accumulated fresh mass (FML), total soluble sugar (TSS), reducing sugar (RS), non-reducing sugar (NRS) and color after frying in the periods of 0, 12, 24, 36 and 48 h after being placed at room temperature. Results: The mechanical damage in the tubers increased FML, however, it did not affect the content of TSS, NRS, RS and color after frying. Increases were observed in the content of TSS and NRS after 12 h of evaluation. Grade 2 was assigned to the coloring scale after frying for the tubers regardless of treatment or evaluation period. Conclusion: Mechanical damage increases the FML and the ‘Markies’ cultivar is suitable for the industry of pre-fried potato processing even under the occurrence of mechanical damage and exposure to high temperatures.

scholarly journals The Effect of Various Film Packaging, Wax Coating and Storage Conditions on the Shelf Life and Quality of Pomegranate Fruits

2019 ◽  
Vol 27 (2) ◽  
pp. 47-54
Author(s):  
Mohammad Reza Safizadeh
Keyword(s):  
Shelf Life ◽  
Titratable Acidity ◽  
Punica Granatum ◽  
Storage Conditions ◽  
Ambient Condition ◽  
Ambient Conditions ◽  
Cold Condition ◽  
Wax Coating ◽  
And Control

AbstractIn this study, ‘Rabbab’ pomegranates (Punica granatum L.) were subjected before storage to single-layered wax coating (SLW), double-layered wax coating (DLW), individual-seal film packaging (ISP), tray wrap film packaging (TWP), and combined treatments of SLW + ISP or SLW + TWP. Treated fruits were then stored at ambient temperature (15–20 °C; 45–50% relative humidity – RH) or in cold conditions (5 °C ± 0.5; 85% RH) for 18 weeks. TWP, ISP, DLW, and SLW extended the shelf life of pomegranates for 18, 18, 12, and 11 weeks at cold (5 °C) condition, and also for 6, 5, 3, and 3 weeks at ambient condition, respectively, whereas the shelf life of control fruits were 10 and 2 weeks at cold and ambient conditions, respectively. After 18 weeks of storage, the weight loss in ISP and TWP fruits was 0.6 and 0.4% at cold condition and 12.4 and 5.4% at ambient condition, respectively. In general, film packaging maintained vitamin C, total titratable acidity, and sensory analysis scores for color, freshness, juiciness, and taste of pomegranates more effectively than wax coating and control. However, the combination of SLW and ISP or TWP did not improve the efficiency of pomegranates packaged as either ISP or TWP.

scholarly journals Quality of ‘Cripps Pink’ apples stored under controlled atmosphere with ultra-low and extremely low oxygen partial pressures or treated with 1-methylcyclopropene

Bragantia ◽  
2021 ◽  
Vol 80 ◽  
Author(s):  
Raquel Carlos Fernandes ◽  
Cristiano André Steffens ◽  
Jéssica Mayumi Anami ◽  
Deysi Jhoana Camayo Mosquera ◽  
Cassandro Vidal Talamini do Amarante ◽  
...  
Keyword(s):  
Controlled Atmosphere ◽  
Low Oxygen ◽  
Partial Pressures

scholarly journals Evaluasi Kualitas Telur Itik Talang Benih dengan Jenis Daun dan Lama Penyimpanan yang Berbeda

2019 ◽  
Vol 6 (3) ◽  
pp. 294
Author(s):  
Jekson Fresli ◽  
Wismalinda Rita ◽  
Nur Hidayah
Keyword(s):  
Storage Time ◽  
Egg Quality ◽  
Egg Yolk ◽  
Egg Consumption ◽  
Randomized Design ◽  
Egg Storage ◽  
Guava Leaves ◽  
And Storage ◽  
Haugh Unit

ABSTRAK                                                                        Tujuan penelitian ini mengetahui jenis daun dan lama penyimpanan terbaik pada kualitas telur itik talang benih konsumsi. Rancangan penelitian yang digunakan adalah rancangan acak lengkap (RAL) pola faktorial dengan 2 faktor dan 3 kali ulangan. Faktor pertama yaitu jenis daun (daun sirsak dan jambu biji) dan faktor kedua yaitu lama penyimpanan (0, 15, dan 30 hari). Parameter yang diamati yaitu warna kuning telur, albumen indeks, yolk indeks, dan haugh unit. Data dianalisis menggunakan ANOVA dan perbedaan antara perlakuan diuji lanjut dengan uji DMRT. Hasil penelitian menunjukan bahawa tidak ada interaksi antara jenis daun dan lama penyimpanan terhadap warna kuning telur, albumen indeks, yolk indeks, dan haugh unit. Daun sirsak lebih mampu mempertahankan warna kuning telur dibandingkan daun jambu biji (P<0,05), namun tidak berbeda nyata (P>0,05) terhadap albumen indeks, yolk indeks, dan haugh unit. Lama penyimpanan sangat berpengaruh nyata (P<0,01) terhadap warna kuning telur, albumen indeks, yolk indeks, dan haugh unit. Dapat disimpulkan bahwa daun sirsak memiliki kemampuan lebih baik dalam mempertahankan warna kuning telur itik talang benih. Penyimpanan telur sebaiknya dilakukan sampai batas 15 hari karena albumen indeks, yolk indeks, dan haugh unit memiliki mutu 2.Kata Kunci: daun, itik talang benih, kualitas telur, lama penyimpananABSTRACTThe amis of this study to determine the type of leaves and the best storage time for the quality of talang benih duck’s egg consumption. The research was design in factorial completely randomized design with 2 factors and 3 replications. The first factor is type of leaves (soursop and guava) and the second factor is storage time (0, 15 and 30 days). Variables observed were yolk color, albumen index, yolk index, and haugh unit. Data were analyzed using ANOVA and differences between treatments were tested by DMRT test. The results showed that there was no interaction between leaves type and storage time for yolk color, albumen index, yolk index, and haugh unit. Soursop leaves are more able to maintain the color of egg yolk than guava leaves (P <0.05), but not significantly different (P>0.05) to the albumen index, yolk index, and haugh unit. Storage time had strong significant effect (P<0.01) on egg yolk color, albumen index, yolk index, and haugh unit. It is concluded that soursop leaves have a better ability to maintain the color of duck egg yolk. Egg storage time should be carried out up to 15 days because albumen index, yolk index, and haugh unit had quality 2.Key words: egg quality, leaves, storage time, talang benuh duck

scholarly journals Effects Of Storage Conditions On The Quality Of Unripe Hazelnuts In The Husk

2015 ◽  
Vol 23 (2) ◽  
pp. 59-67 ◽  
Author(s):  
Bogumił Markuszewski ◽  
Jan Kopytowski
Keyword(s):  
Quality Assessment ◽  
Water Content ◽  
Dry Matter ◽  
Storage Conditions ◽  
Matter Content ◽  
Dry Matter Content ◽  
Controlled Atmosphere ◽  
Storage Diseases ◽  
Controlled Atmospheres

Abstract The purpose of the study was to assess the storability of unripe hazelnuts in the husk of four cultivars: ‘Hall’s Giant’, ‘Catalan’, ‘Webb’s Prize Cob’ and ‘Cosford’. The nuts were stored in normal and controlled atmospheres, and in Xtend® bags for three months. A quality assessment was performed based on the following parameters: weight of the nut in the husk and without the husk, weight of the kernel, percentage of nuts with husk attached, dry matter content in kernels, infection with fungal diseases, and the presence of physiological disorders. The study demonstrated that hazelnuts stored in Xtend® bags and under a controlled atmosphere had a higher weight for the nut in the husk and without the husk, as well as a higher weight of the kernel and water content when compared to batches of hazelnuts stored in a normal atmosphere. The percentage of nuts remaining in the husk was also higher when stored under such conditions. For the majority of investigated cultivars the storage in Xtend® bags, and to a lesser extent under normal atmosphere conditions, resulted in a substantial increase in nuts infected with fungal and abiotic diseases. Among investigated cultivars, ‘Hall’s Giant’ turned out to be the most resistant to storage diseases.

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