Packaging is today indispensible vehicle to maintain the quality of foods during storage, transport and handling. It is essential need of today’s food industry to protect food products from outside influences and damage, to hold the food products together and provide consumers with ingredient and nutritional profile. In addition, it helps minimizing the use of chemical additives and reducing the impact of packaging waste on the environment (Marsh and Bugusu, 2007). Now days, the demand for safe and high quality foods, as well as changes in consumer preferences have led to the development of innovative and novel approaches in food packaging technology (Kerry et al 2006). It is well known that, new food packaging technologies developed during …show more content…
Major components of biosensor
a) Biologically Active Material: a biological derived material is the one that interact with the food under study .e.g. Antibodies enzymes, microorganisms etc.
b) Detector Element: the detector element which is also called as transducer which transform biological signal into another signal that can more easily measure. I.e. amplified signal e.g. optical transducer, electrochemical transducer, calorimetric transducer etc.
c) Signal Processor: It is used to display the result in user friendly manner.
Classification of
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Most of the enzymes used in biosensor are Oxidizes but there are certain limitations as their activity is susceptible to pH, temperature, ionic strength etc. The enzyme sensor array’s application area was tested from meat to fish products, dairy products, fermented foods and then compared with the conventional LC (Liquid Chromatography) (Lange and Wittman 2002). In food analysis, for the simultaneous determination of the three biogenic amines putrescine, histamine and tyramine is prevalent. The enzyme sensor’s lower detection limits were 5 mg/kg for putrescine and 10 mg/kg for histamine and tyramine with a linear range up to 100 mg/kg for putrescine and 200 mg/kg for histamine and tyramine (Otles and Yalcin, 2012). Thus, biogenic amines are an indicator of food deterioration and only an indirect indicator of food freshness in meat (Rokka et al., 2004) and for monitoring fish spoilage, Pacquit et al. (2007) developed a colorimetric dye-based sensor that detects the presence of total volatile basic nitrogen (TVB-N), a product of
There are events and forces that might prevent reliance on auditing through the computer for Kudler Fine Foods. The auditor needs to review the internal controls of the organization to ensure that they are working correctly. If the internal controls in place are not working efficiently then the reliance on auditing through computer will decrease. The physical and environmental security of computer is also important. Many computer systems require strict environmental controls to function properly (Hunton, Bryant, &Bagranoff, 2004, p.220).
In Chapter 2, the author deals with early forms of categorization. During the years of Spanish and Portuguese colonial rule in Latin America, these two empires, believe that it is crucial to have ethno racial classification for each colony. The reason is because it helps these empires to exploit
This partition between races ‘consists of identifying
The purpose of this study is to investigate the effects of varying the concentration of peroxidase on rate of reaction, as well as, the varying temperature and pH levels. Enzymes are proteins that catalyze biochemical reactions that work by reducing the activation energy for each reaction, causing an increase to the rate of the reaction. One class of enzymes are known as peroxidase. Peroxidase catalyze the oxidation of a particular substrate by hydrogen peroxide. Meaning that it eliminates H2O2 in order to prevent damage to the cells and tissues (Department of Biology University of Tampa 74).
I) Introduction This lab was designed to test what effect multiple temperatures would have on the activity of an enzyme. It’s scientifically known that there’s a positive correlation between temperature and an enzyme’s rate of reaction. In other words, as temperature increases, so too does the rate of reaction of an enzyme.
Food Safety In today’s society we have progressed tremendously when it comes to safety in the food industry. We are no longer in the times where food places are allowed to serve food in filthy conditions. There are a large number of acts that have been passed in order to ensure the wellbeing of the public. Some of the stepping stone acts being the Meat Inspection Act and Pure Food and Drug Act of 1906.
Meals; King George V encourage children to drink plenty of water and encourage the eating of fruit at break times. All children are encouraged to bring their own bottle of water into school daily. Key Stage 1 children receive a piece of fresh fruit daily provided by the DfE free fruit scheme. Sweets are not allowed in school unless given out by the teacher for a special occasion. Children are not allowed to eat chocolate bars or sweets.
First classification, films that promise to be sensational to give our bodies an actual physical jolt. Some people name it as “gross”. "Gross" motion pictures are in the show of vibes that are on the edge of respectable. Second classification, pitiful film, these are gross in their emphasis on ignoble feelings. Third classification which
1.1 Abstract The purpose of quantitative analysis of protein using a spectrophotometer is to measure the concentration of proteins in a given sample. The experiment is conducted by laboratory method (Biuret Test) and using spectrophotometer to analyze the absorbance of reactants at 540 nm, hence determining the concentration of the proteins in a given sample. The purpose of stopped enzyme assay to study B-galactosidase is to determine the effect of temperature and concentrations of substrate on enzyme activity.
Typical applications pertain to the quantitative and/or qualitative analysis of food composition, natural products, food additives, flavor and aroma components, a variety of transformation products, and contaminants, such as pesticides, fumigants, environmental pollutants, natural toxins, veterinary drugs, and packaging materials. And particular food applications involving GC, such as carbohydrates and amino acids. Lipids and accompanying lipophilic compounds. flavors and aroma. GC can be used for the direct separation and analysis of gaseous samples, liquid solutions, and volatile solids.
Bio Chem lab Report 04 Enzyme Biochemistry Group Member: Chan Man Jeun Duncan (16002621) Law Sze Man (16000478) Introduction Enzyme is a protein base structure substance in our body. It works at a biocatalyst that will catalyzing the chemical reaction, which helps to speed up the chemical reaction. Enzyme could only function in specific shape, and the shape of enzyme is depending on the environment, therefore it is hard for an enzyme to function well in an extreme environment. The aim of this experiment is to see can the enzyme functions normally in different environment(pH, temperature and salt concentration) via using starch solution, amylase from saliva, 0.5M HCl solution, 0.5M NaOH solution and NaCl solution, and using iodine solution
By observing figure 3, the more enzyme that is available, the faster the reaction rate is. The optimal enzyme concentration was chosen based on the R2 values from figure 2. The highest observable rate also had the best R2 number, which was closest to one. This enzyme concentration was used in part 2.
Module 8: Leadership Model MGT 560: Leadership Development Colorado State University-Global Campus Professor: Tom Woodruff May 03, 2015 : Introduction The Case Study, The Food Terminal (A) has been considered to offer the Model adapted from Montgomery, Copley, and Associates (1996) as a solution for the issues arising out of the case study. A professional situation experienced by me has been considered too and the model employed while I was working as a Manager. Heart Mike mentioned that he was initially nervous while getting the responsibilities and was asked to meet the department managers, and that he could see the look of disappointment in their eyes. He had the heart to share that most of these managers
TLC profiling Ammonia in butanol was the appropriate solvent to use for the column chromatography of food dye. After testing for the appropriate solvent, the set- up for column chromatography was done (Figure 2.). With the use of a clamp, the column was clamped onto an iron stand. A small cotton ball was then pushed in the column until it reached the bottom by using a stirring rod.
Usually, the microbial enzymes have various potential uses in industries and medicine. The microbial enzymes are also more reliable than plant and animal enzymes as they are more stable and active. Also the microorganisms demonstrate an alternative source of enzymes because they can be cultured in large quantities in a short time by fermentation and owing to their biochemical diversity and susceptibility to gene manipulation. Industries are looking for new microbial strains in order to produce different enzymes to fulfil the current enzyme