Electrolyzed Oxidized Water (EOW) is produced by passing a diluted salt solution through an electrolytic cell, having anode and cathode electrodes. The anode and cathode are separated by a bipolar membrane. Negatively charged ionschloride and hydroxide in the diluted salt solution move to anode to give up electrons and become gas (O 2 , Cl 2 ) and hypochlorous acid and having redox potential of +700 to +800 mV with pH 4.0. It has a strong oxidation potential and a shortage of electrons giving it the ability to oxidize and sterilize. In microbial inactivation process, oxidized water damage cell membranes, create disruption in cell metabolic processes and essentially kill the cell. EOW, also a strong acid, is different to hydrochloric acid or sulfuric acid in that it is not corrosive to skin, mucous membrane, or organic material. It is easy to handle and suitable for the sanitation of the plant and decontamination of foods. Electrolyzed water has been tested and used as a disinfectant in the food industry and other applications.
ABSRACTIn this study, a-galactosidase activity and depletion of oligosaccharides by six standard probiotic lactobacillus cultures were evaluated under at incubation times (6, 12, 18, 24, 30 h) in soy milk medium fortified with whey protein concentrate (WPC70) at 1.5%. Reduction of stachyose was higher due to maximum production of a-galactosidase (a-gal) enzyme (133.65 U/mg) by Lactobacillus rhamnosus C6 as compared with the other Lactobacillus cultures and was highest at 30 h of incubation (3.03 mg/100 mL). The results of this study will allow selection of L. rhamnosus C6 culture in soy milk medium supplemented with whey protein concentrate (WPC70), which will enhance growth of Lactobacillus and also reduce whey separation during fermentation process. This culture also showed highest proteolytic activity (381.67 mg serine/mL) by hydrolyzing soy proteins and produce soy bioactive peptides, which have health beneficial activities.
PRACTICAL APPLICATIONSL. rhamnosus C6 strain showed maximum a-galactosidase production as well as reduction of oligosaccharides viz. raffinose, stachyose and sucrose mostly present in soy milk. However, Lactobacilus casei NCDC17 also exhibited similar activity during soy milk fermentation. WPC70 fortification enhanced bacterial growth providing nutrition to the bacteria and also increased physiological activity during fermentation in soy milk medium. These two strains can be selected for the development of functional soy foods like soy yoghurt, soy cheese, soy beverages and soy dahi.
Dietary sodium content is considered as a major contributor to hypertension and cardiovascular diseases. Mozzarella cheese contains high amount of sodium, and addition of emulsifying salts (ESs) to the manufacture of processed cheese further adds to the overall sodium content. The present investigation envisaged the manufacture of low-sodium processed Mozzarella cheese by partial replacement of sodium chloride with potassium chloride (KCl) and also by using potassium-based emulsifying salts, i.e., potassium citrate and di-potassium phosphate, in place of sodium-containing salts. Desired level of potassium chloride and potassium-based emulsifying salt was optimized using response surface methodology (RSM). Sensory attributes, instrumental hardness, meltability, and stretchability were kept as responses of the design. The study returned 30.96% of KCl and 2% of emulsifying salt to be optimum, and at these levels, the product had maximum sensory scores. Hardness, meltability, and stretchability of the product were reported to be 14.355 N, 21.68 cm and 15.07 cm, respectively. Further, the study was validated by manufacturing the product using optimized levels of ESs and KCl and comparing the actual responses with the responses predicted by RSM. No significant difference (p>0.05) between actual and predicted values validated the results of RSM. Full-sodium and low-sodium cheeses had 905 mg/100 g and 260 mg/100 g sodium, respectively. Thus, the study resulted in 71.27% reduction in overall sodium content of processed Mozzarella cheese.
Promising development and expansion in the market of cham-cham, a traditional Indian dairy product is expected in the coming future with the organized production of this milk product by some large dairies. The objective of this study was to document the extent of variation in sensory properties of market samples of cham-cham collected from four different locations known for their excellence in cham-cham production and to find out the attributes that govern much of variation in sensory scores of this product using quantitative descriptive analysis (QDA) and principal component analysis (PCA). QDA revealed significant (p < 0.05) difference in sensory attributes of cham-cham among the market samples. PCA identified four significant principal components that accounted for 72.4 % of the variation in the sensory data. Factor scores of each of the four principal components which primarily correspond to sweetness/shape/dryness of interior, surface appearance/surface dryness, rancid and firmness attributes specify the location of each market sample along each of the axes in 3-D graphs. These findings demonstrate the utility of quantitative descriptive analysis for identifying and measuring attributes of cham-cham that contribute most to its sensory acceptability.
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