scholarly journals Effect of Dry-Salted Curcumin and Various Physicochemical and Technical Factors for the Shelf Life of White Shrimp (Litopenaeus Vannamei)

2018 ◽  
Vol 34 (6) ◽  
pp. 2969-2976
Author(s):  
Nguyen Phuoc Minh ◽  
Nguyen Hong Nga ◽  
Nguyen Thanh Thuy ◽  
Long Giang Bach
Keyword(s):  
Shelf Life ◽  
Litopenaeus Vannamei ◽  
Pathogenic Bacteria ◽  
Fungal Growth ◽  
Storage Conditions ◽  
Life Extension ◽  
White Shrimp ◽  
High Moisture ◽  
Technical Factors ◽  
Soaking Temperature

Loss of quality in seafood has been considered hazardous to consumers due to the proliferation and colonization of pathogenic bacteria. White shrimp (Litopenaeus vannamei) is a very important food due to high protein compostion and nutritional component. White shrimp (Litopenaeus vannamei) was a product of high value, for local consumption as well as export. However, the quick deterioration of white shrimp was caused owing to high moisture and protein content. Drying was one of the best choices to process this seafood. Besides the preservation purposes, the demand for dried shrimp has also been driven by the flavour of the products. Curcumin has been used in traditional medicine to prevent bacterial and fungal growth. It has been used as an ingredient in food recipes. Objective of this research focused on different technical aspects such as the effect of salt and curcumin concentration during soaking; temperature and time of steaming; temperature of drying to chemical, microbial and sensory characteristics during the processing of curcumin-dry-salted white shrimp. The present study also evaluated shelf life extension of curcumin-dry-salted white shrimp under storage conditions. It has been proved that this white shrimp was highly acceptable level in curcumin-dry-salted condition and also maintained best quality.

scholarly journals Cold Plasma: An Alternative in Litopenaeus vannamei Shrimp Preservation

2021 ◽  
Vol 9 (2) ◽  
pp. 521
Author(s):  
Lucas De Oliveira Soares Rebouças ◽  
Julianna Paula do Vale Figueiredo ◽  
Maria Carla da Silva Campelo ◽  
Jovilma Maria Soares De Medeiros ◽  
Renata Bezerra Gomes Rebouças ◽  
...  
Keyword(s):  
Shelf Life ◽  
Thermal Plasma ◽  
Litopenaeus Vannamei ◽  
Cold Plasma ◽  
Microbial Growth ◽  
Quality Attributes ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Non Thermal Plasma

This study aimed evaluating the effects of cold plasma on the quality attributes of Pacific white shrimp (Litopenaeus vannamei). Shrimp were divided into 4 sample groups: one control and the remaining groups subjected to cold plasma at frequencies of 5, 10, and 15 kHz, respectively, during 10 minutes of application followed by evaluation of chemical, physical, microbiological, and sensorial characteristics. Cold plasma contributed significantly to the maintenance of shrimp quality during storage, delaying the melanization process, microbial growth, improving the physicochemical and sensorial qualities of the samples. Exposure of white shrimp to non-thermal plasma at 15 kHz promoted better physicochemical, microbiological, and sensorial results, and increased the shelf life of samples by 5 days, suggesting that the treatment is effective to preserve the quality of shrimp.

scholarly journals Nutritional Quality and Shelf Life Extension of Capsicum (Capsicum annum) in Expanded Polyethylene Biopolymer

2020 ◽  
Vol 39 (01) ◽  
Author(s):  
Sudhir Singh ◽  
S. N.S. Chaurasia ◽  
Indivar Prasad Priti Khemariya ◽  
Tanweer Alam
Keyword(s):  
Shelf Life ◽  
Nutritional Quality ◽  
Storage Conditions ◽  
Life Extension ◽  
Overall Acceptability ◽  
Capsicum Annum ◽  
Functional Quality ◽  
Ambient Storage ◽  
Acceptable Consistency

Freshly harvested capsicum has limited shelf life (5-6 days) under ambient storage conditions. The functional quality of capsicum has been assessed in two sizes (300g±10%) and (900g±10%) of 30µ flex freshTM expanded polyethylene biopolymer pouches at 3 and 10oC and 90-95% RH under modified atmospheric storage. In both small and big size pouches, composition of oxygen and carbon dioxide varied from 18.8-19.9% and 18.8-19.4% and from 2.2-0.7% and 2.0-1.4%, respectively during 28 days of storage at 3oC. Positive and significant correlation was observed between overall acceptability and CO2 composition however, negative correlation was observed with O2 composition. Minimum increase (6.02% and 4.35%) in PLW, minimum decrease in firmness (4.71N-3.50N and 4.71N-2.70N), minimum decrease in chlorophyll (70.3% and 75.5%) and minimum losses (47.6% and 40.3%) of ascorbic acid were obtained after 28 days of storage in small and big size capsicum, respectively at 3oC. The decrease in total phenol and antioxidant activity was 82.4% and 78.6% and 60.1% and 59.4%, respectively after 28 days of the storage at 3oC of small and big size capsicum, respectively. Judges observed most acceptable consistency and OAA score for both sizes of capsicum in pouches up to 21 days of storage at 3oC.

scholarly journals Effect of storage conditions on the shelf-life extension of fungus-colonized substrates based on Metarhizium anisopliae using modified atmosphere packaging

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Seul-Gi Jeong ◽  
Ho Myeong Kim ◽  
Junheon Kim ◽  
Jae Su Kim ◽  
Hae Woong Park
Keyword(s):  
Shelf Life ◽  
Metarhizium Anisopliae ◽  
Modified Atmosphere Packaging ◽  
Pine Wilt Disease ◽  
Storage Conditions ◽  
Bursaphelenchus Xylophilus ◽  
Life Extension ◽  
Modified Atmosphere ◽  
Promising Alternative ◽  
Ethylene Vinyl Alcohol

AbstractMetarhizium anisopliae is a promising alternative to chemical pesticides against pine wilt disease caused by Bursaphelenchus xylophilus. Herein, we investigated the efficacy of modified atmosphere packaging (MAP) to prolong the shelf-life of the M. anisopliae conidia. The effects of various conditions on its stability were also examined. M. anisopliae-inoculated millet grains were treated in a MAP system with different packaging materials (polypropylene, PP; polyethylene terephthalate, PET; ethylene vinyl alcohol, EVOH), gas compositions (high CO2 atmosphere, ≈ 90%; high O2 atmosphere, > 95%; high N2 atmosphere, > 95%; 30% CO2 + 70% N2; 50% CO2 + 50% N2; 70% CO2 + 30% N2), and storage temperatures (4 and 25 °C). Results revealed EVOH film as the best for the preservation of gases at all concentrations for 28 days. MAP treatment in the high-barrier EVOH film under an atmosphere of 30% CO2 + 70% N2 achieved 80.5% viability of dried conidia (7.4% moisture content), with 44.2–64.9% viability recorded with the other treatments. Cold storage for technical concentrates formulation promoted extension of shelf-life of MAP-treated conidia. These results imply that MAP under optimized conditions could enhance the shelf-life of fungus-based biopesticides in fungus-colonized substrates formulations.

Use of Cold Atmospheric Plasma To Preserve the Quality of White Shrimp (Litopenaeus vannamei)

2019 ◽  
Vol 82 (7) ◽  
pp. 1217-1223 ◽  
Author(s):  
DE ANGELIS de SOUZA SILVA ◽  
MARIA CARLA da SILVA CAMPELO ◽  
LUCAS de OLIVEIRA SOARES REBOUÇAS ◽  
JUSSIER de OLIVEIRA VITORIANO ◽  
CLODOMIRO ALVES ◽  
...  
Keyword(s):  
Shelf Life ◽  
Litopenaeus Vannamei ◽  
Cold Plasma ◽  
Bacterial Load ◽  
Pacific White Shrimp ◽  
Atmospheric Plasma ◽  
White Shrimp ◽  
Enzymatic Oxidation ◽  
Economic Losses ◽  
Control Group

ABSTRACT The enzymatic oxidation process that causes black spots on shrimp, named melanosis, leads to spoilage and economic losses. Therefore, there is an urgent need for strategies to reduce melanosis in the food industry. Cold plasma is an emerging nonthermal food processing technology. This work explores a novel application of cold plasma for the preservation of shrimp quality. This study aimed to evaluate the effects of cold plasma on the quality attributes of Pacific white shrimp (Litopenaeus vannamei). The shrimp samples were divided in two groups: the control group and the plasma group. Samples were exposed to nonthermal plasma for 10 min at a frequency of 500 Hz. Microbiological assays, including total counts of mesophilic and psychrotrophic bacteria, Staphylococcus spp., and Salmonella sp., were performed along with investigations of physicochemical parameters, such as pH, color, water-holding capacity, cooking loss, and shear force. In addition, sensory (quality index method) tests were conducted. The plasma group exhibited a shelf life of 14.07 days, while the control group exhibited a shelf life of 9.78 days. The experimental protocol used in this study was not enough to obtain significant reduction in the bacterial load. However, treatment with the cold plasma contributed to improving the physicochemical properties during storage. HIGHLIGHTS

scholarly journals Improvement of Sensorial, Physicochemical, Microbiological, Nutritional and Fatty Acid Attributes and Shelf Life Extension of Hot Smoked Half-Dried Pacific Saury (Cololabis saira)

Foods ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1009
Author(s):  
Md. Abdul Baten ◽  
Na Eun Won ◽  
Jae Hak Sohn ◽  
Jin-Soo Kim ◽  
Md. Mohibbullah ◽  
...  
Keyword(s):  
Shelf Life ◽  
Nutritional Value ◽  
Storage Conditions ◽  
Sensory Attributes ◽  
Life Extension ◽  
Asia Pacific ◽  
Human Consumption ◽  
Pacific Saury ◽  
Health And Nutrition ◽  
Cololabis Saira

Half-dried Pacific saury of Cololabis saira (HDPS) is a fatty fish of high nutritional value with remarkable consumer interest in the Asia Pacific region, however, it undergoes various deteriorative changes associated with browning, bacterial contamination, oxidation, and decreased sensory attributes while marketed in various processed forms. To withstand these complications, research aimed to investigate the hot smoking technology to improve physicochemical, microbiological, and sensory attributes of HDPS with prolonged shelf life in storage conditions. The HDPS fillets were processed with hot smoking (70 °C) using various sawdust materials of Apple, Chestnut, Oak, Cherry, and Walnut, wherein the smoke time was set at different time points of 0, 20, 25, and 30 min. The results indicated that 25 min of smoking time with the selective Oak sawdust showed better sensorial characteristics, physicochemical properties, and microbiological qualities. Moreover, HDPS possessed higher nutritional value and valuable functional fatty acids, particularly docosahexaenoic acid and eicosapentaenoic acid, having a storage ability of up to 30 days at 10 °C. The processed HDPS offered a reduced level of Trimethylamine-N-oxide and Benzo[a]pyrene contents, indicating the acceptable and safe for human consumption. Therefore, HDPS with hot smoking could likely be a promising technique for preserving the premium quality of the product by providing desired characteristics of health and nutrition to end-point consumers.

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