A review of recent trends in the development of the microbial safety of fruits and vegetables

2020 ◽  
Vol 103 ◽  
pp. 321-332
Author(s):  
Mahdieh Mostafidi ◽  
Mohammad Reza Sanjabi ◽  
Faezeh Shirkhan ◽  
Maryam Tamaskani Zahedi
2019 ◽  
Vol 26 (18) ◽  
pp. 3279-3299 ◽  
Author(s):  
Marco Bonesi ◽  
Jianbo Xiao ◽  
Rosa Tundis ◽  
Francesca Aiello ◽  
Vincenzo Sicari ◽  
...  

Tyrosinase is a multifunctional copper-containing oxidase which catalyses the oxidation of tyrosine to produce melanin. The alteration in melanin biosynthesis occurs in many diseases. The pigment has a protecting role against skin photo-carcinogenesis, but anomalous melanin pigmentation is an aesthetic problem in human beings. Moreover, the formation of neuromelanin in human brain could contribute to the neurodegeneration associated with Parkinson’s disease. Finally, tyrosinase is also responsible for undesired browning in fruits and vegetables. These topics encouraged the search for new inhibitors of this enzyme for pharmaceutical, cosmetic and foods industries. This review is to report recent trends in the discovery of tyrosinase inhibitors from plant sources, to provide a rationale for the continued study of natural tyrosinase inhibitors, and to recognise the potential therapeutic rewards associated with the identification of these agents.


2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
Devanakonda Revati Rajanya ◽  
Gurpreet Singh

The marvel of expulsion of water from lower solvent concentration to higher concentration by a semi-perimeable membrane is osmotic dehydration, resulting in equilibrium state on both sides of the membrane. As it decreases the water activity of fruits. It is found to be most widely used application for preserving food materials. Due to colour, scent, nutritional constituents and flavour compound retention value, osmotic dehydration is favoured over other methods. Drying, shower drying, freezedrying, solidifying, vacuum packing, canning, syrup conservation (osmotic dehydration), sugar crystallization, nourishment illumination and the addition of preservatives or inert gases such as carbon dioxide are typical methods of applying these processes. The solutes used in osmotic parchedness are ordinarily sugar syrup with fruit slices or 3d shapes, and salt (sodium chloride) or vegetable brine. This can be the method of multicomponent diffusion. Water moves from fruits or vegetables to the solution in this process and certain fruit and vegetable components such as minerals, vitamins, fruit acids, etc also pass into the solution along with water to the fruits and vegetables, sugar and salt migrate. Examples that are considered are Gooseberry Murabbas (Aonla), apples, sweets, candies of Different fruits and vegetables, including pethas, parwal, Osmosis-made sweets in sugar syrup are the most popular items of commercial value available in the market made from fruits. It is processed in a brine solution before drying in pickles made from raw mango. In brine, various vegetables are handled to lower their moisture content


2021 ◽  
Vol 66 (1) ◽  
Author(s):  
Jitender Kumar Bhatia

Recent trends in the international trade scenario and related shifts in India’s foreign trade policy have had far-reaching consequences for India’s general agricultural sector and, in particular, for agricultural exports. The Indian product of agriculture has played an important part in the global product of agriculture. For many agricultural commodities, India used to be the key export spot. The present study established the growth and output of agricultural exports from India during the time (2000-2019). India is the top tenth exporter of agricultural products in the world. Top exports comprise sugar, beef, rice, and shrimp. Export of principal agricultural products including rice, wheat, sugar, cotton, fruits, and vegetables are ‘free’ whereas export of pulses (excluding chickpea) and edible vegetable oil in bulk (excluding coconut and rice bran oils) are ‘restricted’ to meet domestic demand. Indian agricultural exports have increased, but the proportion of agricultural exports to the country’s overall exports has decreased. The research also explores the evolving behavior of the allocation of each category of commodities to the overall agricultural export basket. It covers the major agricultural products/crops which, over different periods, contribute to the maximum share of total agricultural exports (2000-2019). Higher agricultural exports would mean better price realization for farmers, increased awareness regarding good agricultural practices, and consequently thrust for quality also.


2018 ◽  
Author(s):  
Erica Kistner-Thomas

While the Midwest is famous for being the world’s leader in corn and soybean production, this region is also home to a variety of high value specialty crops. Specialty crops include fruits and vegetables, tree nuts, dried fruits, and nursery crops including floriculture.


Author(s):  
Keith Warriner ◽  
Ann Huber ◽  
Azadeh Namvar ◽  
Wei Fan ◽  
Kari Dunfield

2016 ◽  
Vol 15 (6) ◽  
pp. 1056-1066 ◽  
Author(s):  
Siméon Bourdoux ◽  
Dan Li ◽  
Andreja Rajkovic ◽  
Frank Devlieghere ◽  
Mieke Uyttendaele

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1661
Author(s):  
Dariusz Dziki

Drying is among the most important processes and the most energy-consuming techniques in the food industry. Dried food has many applications and extended shelf life. Unlike the majority of conventional drying methods, lyophilization, also known as freeze-drying (FD), involves freezing the food, usually under low pressure, and removing water by ice sublimation. Freeze-dried materials are especially recommended for the production of spices, coffee, dried snacks from fruits and vegetables and food for military or space shuttles, as well as for the preparation of food powders and microencapsulation of food ingredients. Although the FD process allows obtaining dried products of the highest quality, it is very energy- and time consuming. Thus, different methods of pretreatment are used for not only accelerating the drying process but also retaining the physical properties and bioactive compounds in the lyophilized food. This article reviews the influence of various pretreatment methods such as size reduction, blanching, osmotic dehydration and application of pulsed electric field, high hydrostatic pressure or ultrasound on the physicochemical properties of freeze-dried food and drying rate.


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