Decontamination processes

Iodine is potentially one of the most hazardous fission products that can be released from the fuel of nuclear reactors during a severe accident. They undergo physical and chemical processes that govern their behavior in the containment, which play an important role in determining the amount of volatile iodine emitted to the containment environment.

9p vidumbledore 06-01-2023 8 2   Download

The main goal of this book is to provide the reader with recent developments in new technologies for the full meat processing chain.

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Non-thermal plasma is a new concept in food processing technology and reports available are scanty in India. To explore this novel physical decontamination technology to increase the shelf life of farm produce, a laboratory study has been carried out using cumin seed spiked with the different bacterial cultures.

9p chauchaungayxua10 19-03-2021 7 1   Download

Pulsed light is an emerging non thermal processing technology used for food decontamination. A laboratory scale pulsed light treatment chamber was designed and fabricated. In this study, tender coconut water was exposed to pulsed light to inactivate the E. coli using different process parameter such as juice layer depth (5, 10, 15 and 20mm), shelf height (5, 10 and 15cm) and number of pulses (60, 120, 180 and 240 flashes) corresponding to an fluency of 4.8, 9.6, 14.4 and 19.2J/cm2 .

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Salmonellosis is one of the major leading foodborne zoonotic diseases reported worldwide, poultry and poultry products including table eggs were reported as the most important source for foodborne outbreaks in humans. The present study was designed to determine and compare the occurrence of Salmonella serovars by cultural and molecular (PCR) methods in processed, unprocessed and desi table eggs available in the markets, resistance pattern of isolates for commonly used antibiotics and decontamination of table eggs using chlorine and peracetic acid.

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Field and laboratory experiments were carried out to evaluate the effect of different decontamination processes on reduction of profenofos and chlorpyrifos residues in cauliflower curds like washing, cooking, washing plus cooking and dipping in chemical solutions after application of Profex 50EC (profenofos 50%) and Lethal 20EC (chlorpyrifos 20%) individually on the crop.

10p angicungduoc5 12-06-2020 8 1   Download

Experiments of field and laboratory were carried out to evaluate the effect of different decontamination processes on reduction of chlorpyrifos and cypermethrin residues in cauliflower curds like washing, cooking, washing plus cooking and dipping in chemical solutions after application of ready-mix formulation Cannon 55EC (chlorpyrifos 50% + cypermethrin 5%) on the crop. Ready-mix formulation Cannon 55EC was applied twice at the rate of 1ml/L at 15 days interval on cauliflower crop.

10p angicungduoc4 26-04-2020 4 0   Download

In order to increase agricultural production different type of pesticides viz., organochlorines, carbamates etc. are used on large scale to kill unwanted insects, pests, plants etc.; as mode of action of most of them is not specific, they often harm or kill organisms other than pests, including humans. Residues of most common pesticides could affect the ultimate consumers (animal and human) especially when pesticide treated fruit/vegetables are consumed raw. Proper processing technique in daily use of vegetables and fruits i.e. washing, peeling boiling, cooking, frying, sun drying etc.

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Dissipation behaviour of novaluron 5.25% SC was investigated in tomato fruits sprayed at 43.31 (single dose) and 86.62 g a.i. ha-1 (double dose). Tomato fruits samples were collected periodically on 0 (1h after application), 1, 3, 5, 7, 10, and 15 days after application. Average recoveries of novaluron in tomato fruits fortified at 0.01 to 0.25 mg kg-1 levels ranged from 82.20 to 89.47 per cent. The initial deposits of novaluron were 0.30 and 0.56 mg kg-1 at single and double dose, respectively.

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The research was carried out to determine the persistence of acephate and chlorpyriphos on cucumber crop and soil along with the effect of decontamination processes. The initial deposits due to single dose of acephate (560 g a.i. ha-1 ) and chlorpyriphos (300 g a.i. ha-1 ),) were 0.640 and 0.980 mg kg-1 , respectively in cucumber fruits. However, at double dose the initial deposits were 1.123 and 1.860 mg kg-1 for respective insecticides. Acephate and chlorpyriphos residues persisted in cucumber fruits upto 5 and 7 days at single dose and 7 and 10 days at double dose, respectively.

15p caygaocaolon3 27-02-2020 12 1   Download

Why do some contaminants remain in soils indefinitely? How much of a threat do they pose to human health or the environment? The need for effective and economic site decontamination arises daily. Geoenvironmental Engineering: Contaminated Soils, Pollutant Fate, and Mitigation discusses why soils remain contaminated, focusing on the development of the factors, properties, characteristics, and parameters of soils and individual contaminants.

32p tuongmatdo 10-12-2011 144 24   Download

The epidemic of mad cow disease, centered in the United Kingdom, and associated human cases of variant Creutzfeldt-Jakob disease (Chap. 378) caused by disinfection-resistant prion agents have led to revised recommendations for decontaminating surgical instruments, especially those used for operations on the central nervous system or in patients with dementing illness of unknown etiology. The process of diagnosing and treating wound infections begins with a careful assessment of the surgical site in the febrile postoperative patient.

4p chubebandiem 14-12-2010 65 5   Download