Explain holding method of pasteurization, Biology

Assignment Help:

Explain holding method of pasteurization

In the holding method of pasteurization (62oC for 30 minutes) or the high-temperature short-time (HTST), 71oC for 15 minutes methods - very little cooked flavour is noticed, but at higher temperatures or longer periods of heating, cooked flavour becomes more apparent. The flavour appears at 70oC on momentary heating. 

This cooked flavour has been shown to be due to the production of  sulfhydryls (compounds with a -SH group, found in many  plant and animal enzymes) by high temperatures. Sulfhydryl compounds are readily oxidized and delay the oxidation of fat in milk or cream heated to high temperatures.  Oxidized flavors in milk do not usually appear until the sulfhydryls are oxidized and the cooked flavor has disappeared. 

 


Related Discussions:- Explain holding method of pasteurization

Explain procedure for simple staining of bacterial cultures, Explain Proced...

Explain Procedure for Simple Staining of Bacterial Cultures? Now carry out the exercise following the steps given herewith: (1) Prepare thin bacterial smear on clean glass s

Give name of the cells capable of making gametes, Q. What is the name of th...

Q. What is the name of the cells capable of making gametes? What is the ploidy of these gamete-forming cells? The cells that form gametes are the germ cells as opposed to the s

Explain about vitamin C, Vitamin C (Ascorbic acid) Vitamin C, ascorbic ...

Vitamin C (Ascorbic acid) Vitamin C, ascorbic acid is also called anti-scorbutic vitamin. Ascorbic acid occurs as white crystals or white crystalline powder without odour and o

Characteristic features of phylum arthropoda, Characteristic Features of Ph...

Characteristic Features of Phylum Arthropoda Well-developed muscular system along with striated muscles attached to the exoskeleton, and visceral organs having smoot

Explain sialography, Question 1 Explain Sialography? How will you perfo...

Question 1 Explain Sialography? How will you perform the same? Question 2 How will you set up your radiology department to take up the IVU studies? Question 3 D

Difference between spermatid and spermatocyte ii, Q. What is the difference...

Q. What is the difference between spermatid and spermatocyte II? The spermatids (n) are the products of the second division of meiosis (meiosis II) in the male gametogenesis an

Explain the psychological management of eating disorders, Explain the Psych...

Explain the Psychological Management of eating disorders? All anorexia nervosa or bulimia nervosa patients are resistant to any kind of therapy and hospitalization may be a lif

Blank titration for determination of iodine number of lipids, Define Blank ...

Define Blank titration for Determination of the Iodine Number of Lipids? Using an autopipette, measure 25 ml of Hanus iodine reagent accurately and transfer into a 250 ml iodin

What is tertiary structure of a protein, Q. What is tertiary structure of a...

Q. What is tertiary structure of a protein? What are the major types of tertiary structure? The tertiary protein structure is a spatial conformation additional to the secondary

Define the remodeling rate, Q. Define the Remodeling rate? Human corti...

Q. Define the Remodeling rate? Human cortical bone: 2-10%  per year depending on site and age of patient. Trabecular bone: Higher turnover rate 20-30% per year. In a stu

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd