Food Preservation and Storage

Author(s):  
S.K. MAJUMDER
Author(s):  
Abhinav Dubey ◽  
Atish Sagar ◽  
Pankaj Malkani ◽  
Mukesh Kumar Choudhary ◽  
Sawant Sanket Ramnath

Drying is one of the most important unit operations for food preservation and storage. It is a energy intensive process and with the increase in the price and demand of electricity, renewable energy (solar) is proving its worth. Greenhouse dryers are low cost, easily constructible and can be utilised for invariably majority of agricultural commodities. The above attributes accounts for its high popularity in the Indian sub continents and Africa. An attempt has been made to generate a comprehensive review on the application, advances in construction, modelling, simulation and economics of the solar greenhouse dryers.


2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Yajing Xie ◽  
Qiong Lin ◽  
Wenqiang Guan ◽  
Shuzhen Cheng ◽  
Zhidong Wang ◽  
...  

Fresh-cut vegetables, such as potato chips, get brown quickly and can easily be infected by bacterium during storage. Sodium acid sulfate (SAS) and UV-C treatments are regarded as effective methods for food preservation. In this study, the effects of SAS, UV-C treatment, and their combination on fresh-cut potatoes during storage were evaluated. Compared with the control, all of the treatments were effective in inhibiting the bacterial growth during the whole storage period. Also, both SAS and SAS + UV-C treatments significantly decreased browning and polyphenol oxidase (PPO) activity and increased the firmness and malondialdehyde (MDA) contents, while the UV-C treatment has no good effects on protecting such storage qualities in fresh-cut potatoes. However, when compared with SAS treatment, the combination of SAS and UV-C treatment did not promote the effect in protecting the storage abilities. Thus, it was concluded that SAS is a better treatment in extending shelf life and controlling the quality of fresh-cut potatoes during storage compared to UV-C treatment.


Author(s):  
A.S Oyerinde ◽  
◽  
J.I Braimah ◽  

In the majority of African countries, agriculture represents the most important part of the economy. However, national food production still doesn't meet the requirements of the population. The decrease in food production caused by crop-failures, significant seasonal fluctuations, lack of appropriate and affordable preservation and storage systems can be resolved by way of drying. Locally, crop drying has been accomplished by burning wood and fossil fuels in ovens or outdoors drying under screened sunlight. These methods, however, have their shortcomings. The previous is expensive and not environmental friendly and the latter is vulnerable to the variability and unpredictability of the weather. This paper discusses the development of a hybrid solar food dehydrator using locally available materials like plywood, wire mesh, and a glass, to supply an honest method for food preservation that maintains a high level of flavor and nutrients, at the same time providing a convenient, compact, easy-to-store supply of Agricultural produce at a far lesser cost.


2021 ◽  
Vol 25 (3) ◽  
Author(s):  
Senka Popović

Lipid oxidation is a major cause of off-flavors and loss of nutrients in fat-containing foods and oils. The prevention or retardation of those deteriorative reactions of oil during processing and storage is required.  Commercially available synthetic packaging materials are causing serious environmental problems due to their non-degradability. To reduce environmental impacts associated with synthetic plastics, biopolymer materials have a great potential to be used instead. Further, biopolymers play an important role in food preservation because of their antioxidant and antimicrobial activities. Packing system comprise of natural active materials can improve shelf life of oil packed, minimize oxidation and improve mechanical, barrier and biological properties of biopolymer films. In this paper, to determine effect of usage biopolymer materials for oil packing, different  edible oils and biopolymer materials were observed.


2020 ◽  
Vol 9 (8) ◽  
pp. e998986666
Author(s):  
Lariane Strack ◽  
Rodrigo Cavalheiro Carli ◽  
Raíssa Vieira da Silva ◽  
Kátia Bitencourt Sartor ◽  
Luciane Maria Colla ◽  
...  

There is a growing consumer demand for natural foods, and it is of great interest to develop and produce natural and effective substances for food preservation, replacing synthetic preservatives. The growth of bacteria can occur in food due to environmental conditions during handling and storage, even if good manufacturing practices have been observed. This can cause losses for the industry, also becoming a risk of contamination to the consumer, being necessary to develop new techniques for controlling these sources of contamination. Lactic acid bacteria are known for their benefits to the organisms of those who consume them and for the ability to produce, under appropriate conditions, natural antimicrobial compounds, which can be used as biopreservatives in food and contribute to the increase of shelf life. Bacteriocins are proteins or peptides produced in ribosomes that have the capacity to act against certain pathogens, preventing their multiplication in products during the periods of storage and distribution. The aim of this review is to present the main bacteriocin-producing microorganisms, the forms of production, as well as the techniques by which these bioproducts have been applied in the biopreservation of food products and the results obtained. Biopreservation using bacteriocins has been studied and established as a new and important method, however it is necessary to search for production processes of these bacteriocins on a larger scale and with cost reduction, so that their potential can be increasingly explored by science and industry. Studies related to mechanisms of action and applications in food are also necessary in order to support the decisions of regulatory agencies.


2019 ◽  
Vol 4 (4) ◽  

The wellbeing and sustenance of food amid its preparation, transport and storage are requirements for present day food handling. Essential oils (EOs) are important aromatic components of herbs and spices and their biological activities have been known and utilized since ancient times in perfumery, food preservation, flavoring, and medicine. The antimicrobial activities of essential oils clearly indicates that, they are more acceptable because of their unique antibacterial, antifungal and antiviral properties. This review paper focuses on essential oils and their applications by employing essential oils as a natural preservative that are suitable to be used in food preservation, pharmaceutical, cosmetics and among other industries. So far as factors which are responsible for food spoilage and other health related problems are still in existence, there is the need to develop sustained preservation and public health relief techniques. The recent advances in the application and alternative means of fruits and food decay, especially natural products as preservatives for fruits, essential oils as a drug as well as their antimicrobial scavenging characteristics will be reviewed. Other applications in the food, cosmetic and pharmacological industries, will also be conferred.


1975 ◽  
Vol 191 (1102) ◽  
pp. 155-168

Changes in the transportation environment along with advancements in the technology of food production could have rather major impact on the nature of food movements and storage world-wide by the1980s. Changes in world population growth is, of course, a major factor. However, technology alone will bring about many changes. Faster, more reliable and more economical transportation will allow us to exploit growing regions that are currently unused and new technology applied to pro­cessing and food preservation will allow new markets to be exploited in ways that are currently unfeasible.


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