Quantitative Tools and Procedures for Shelf Life Determination in Minimally Processed Fruits and Vegetables

Author(s):  
A. Possas ◽  
F. J. Benítez ◽  
D. Savran ◽  
N. J. Brotóns ◽  
P. J. Rodríguez ◽  
...  
2015 ◽  
Vol 46 (2) ◽  
pp. 302-310 ◽  
Author(s):  
Lorenzo Siroli ◽  
Francesca Patrignani ◽  
Diana I. Serrazanetti ◽  
Fausto Gardini ◽  
Rosalba Lanciotti

2007 ◽  
Vol 18 (4) ◽  
pp. 210-218 ◽  
Author(s):  
A.B. Martín-Diana ◽  
D. Rico ◽  
J.M. Frías ◽  
J.M. Barat ◽  
G.T.M. Henehan ◽  
...  

2020 ◽  
Vol 8 (6) ◽  
pp. 952 ◽  
Author(s):  
Sofia Agriopoulou ◽  
Eygenia Stamatelopoulou ◽  
Monika Sachadyn-Król ◽  
Theodoros Varzakas

Eating fresh fruits and vegetables is, undoubtedly, a healthy habit that should be adopted by everyone (particularly due to the nutrients and functional properties of fruits and vegetables). However, at the same time, due to their production in the external environment, there is an increased risk of their being infected with various pathogenic microorganisms, some of which cause serious foodborne illnesses. In order to preserve and distribute safe, raw, and minimally processed fruits and vegetables, many strategies have been proposed, including bioprotection. The use of lactic acid bacteria in raw and minimally processed fruits and vegetables helps to better maintain their quality by extending their shelf life, causing a significant reduction and inhibition of the action of important foodborne pathogens. The antibacterial effect of lactic acid bacteria is attributed to its ability to produce antimicrobial compounds, including bacteriocins, with strong competitive action against many microorganisms. The use of bacteriocins, both separately and in combination with edible coatings, is considered a very promising approach for microbiological quality, and safety for postharvest storage of raw and minimally processed fruits and vegetables. Therefore, the purpose of the review is to discuss the biopreservation of fresh fruits and vegetables through the use of lactic acid bacteria as a green and safe technique.


2019 ◽  
Vol 2 (2) ◽  
pp. 397-408
Author(s):  
Tong Thi Anh Ngoc ◽  
Phan Thi Thanh Que

Minimally processed fruits and vegetables are economically important commodities due to convenience, and healthiness, etc. These commodities are susceptible and shelf life limited as cut surfaces of vegetable result in microbiological and physiological spoilage. To extend the shelf life of Asian spinach vegetables, different washing treatments (i.e. tap water, chlorine dioxide, and peracetic acid) and packaging materials (i.e. Polypropylene-PP, High Density Polyethylene-HDPE and Low Density Polyethylene-LDPE) were evaluated in the study. The results obtained show that washing treatment of the Asian spinach with peracetic acid solution of 100 ppm for five minutes was effective due to reduced significantly E. coli and Coliforms counts. The Asian spinach was packed in HDPE material might optimally prolong the shelf life up to 7 days at 10±1oC.


Foods ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2821
Author(s):  
Amalia Carmen Miteluț ◽  
Elisabeta Elena Popa ◽  
Mihaela Cristina Drăghici ◽  
Paul Alexandru Popescu ◽  
Vlad Ioan Popa ◽  
...  

The food industry nowadays is facing new challenges in terms of sustainability and health implications of packaging and processing techniques. Due to their desire for new and natural products coupled with changes in lifestyle, consumers are looking for food products that have been less processed but possess longer shelf life and maintain nutritional and sensorial proprieties during storage. These requirements represent real challenges when dealing with highly perishable food products, such as fruits and vegetables. Thus, in recent years, edible coatings have been intensively developed and studied because of their capacity to improve the quality, shelf life, safety, and functionality of the treated products. Edible coatings can be applied through different techniques, like dipping, spraying, or coating, in order to control moisture transfer, gas exchange, or oxidative processes. Furthermore, some functional ingredients can be incorporated into an edible matrix and applied on the surface of foods, thus enhancing safety or even nutritional and sensory attributes. In the case of coated fruits and vegetables, their quality parameters, such as color, firmness, microbial load, decay ratio, weight loss, sensorial attributes, and nutritional parameters, which are very specific to the type of products and their storage conditions, should be carefully monitored. This review attempts to summarize recent studies of different edible coatings (polysaccharides, proteins, lipids, and composites) as carriers of functional ingredients (antimicrobials, texture enhancers, and nutraceuticals) applied on different minimally processed fruits and vegetables, highlighting the coating ingredients, the application methods and the effects on food shelf life and quality.


2015 ◽  
Vol 4 (5) ◽  
pp. 157
Author(s):  
Fabíola Gonçalves da COSTA ◽  
Adelino Cunha Neto ◽  
Luiz José Rodrigues ◽  
Eduardo Eustáquio de Souza Figueiredo

Consumers have been increasingly seeking healthier foods without sacrificing sensory satisfaction and convenience, which are highly acclaimed attributes in modern times. Minimally processed products can meet these demands. The present study evaluated the microbiological, microscopic and physicochemical quality of minimally processed fruits and vegetables marketed in Cuiabá, Brazil. A total of 36 samples, consisting of sliced melon, fruit salad in pieces, grated carrot, diced melon, sliced papaya and pineapple rounds were subjected to microbiological, microscopic and physicochemical analyses. <em>Salmonella</em> spp. was absent in all samples, while 27.8% (10/36) of the samples showed coliform counts at 45 °C over 2.0 and 2.7 log CFU.g<sup>-1</sup> in fruit and vegetables, respectively. Light dirt and foreign matter were present in 55.5% of the samples (20/36), including wood fragments and insect/animal excrements (rat hair) in 13.9% (5/36) of the samples. The pH and soluble solids (°Brix) results ranged from 3.84 to 6.66 and from 8.19 to 10.24, respectively. The products were in different stages of maturation and 27.8% (10/36) of the sliced papaya and grated carrots were in unsatisfactory sanitary conditions under the current Brazilian legislation.


2015 ◽  
Vol 68 (2) ◽  
pp. 7679-7688
Author(s):  
Fabián Rico Rodríguez ◽  
Carolina Gutiérrez Cortés ◽  
Consuelo Díaz Moreno

Demand for minimally processed fruits have increased due to their nutritional value and an increasing change in consumption habits. Physicochemical, microbiological, structural and sensory changes were determined in minimally processed mangoes (MPM) with chitosan (CH) edible coatings and lemon and orange essential oils (EOL). The MPM was first dipped in citric acid and a texturizing solution and then dipped in CH and lemon or orange EOL coatings. Weight loss, sensory acceptance, total soluble solids, total acidity, ascorbic acid, color changes, firmness and elasticity, and microbiological changes were quantified for 11 days of refrigerated storage. The CH and lemon EOL coating had more acceptance than the other treatments. No differences were found (p>0.05) for weight loss, total acidity, ascorbic acid, firmness or elasticity. There was a high amount of total phenols due to the EOL composition, as well as a high antioxidant capacity in the early days of storage. This characteristic decreased in the final days of the study. There was a decrease in the microbial charge for the lemon EOL treatment, as compared to the other samples. The CH and lemon EOL coating helped to maintain the shelf-life of the MPM for 11 days of storage without affecting the sensory acceptance. The CH and Orange EOL coating did not have an effect on the MPM physicochemical attributes; however, the sensory acceptance was negatively affected with off-flavors conferred to the MPM.


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