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

How can triglycerides be decreased, Q. How can triglycerides be decreased? ...

Q. How can triglycerides be decreased? Triglycerides could be decreased by: - limiting foods high in fats - decreasing sugar and sugar containing foods (carbonated bevera

Winter stratification - thermal stratification, Winter Stratification - The...

Winter Stratification - Thermal stratification During extremes of winter the surface layer of the lake freezes or attains a temperature close to 0° Celsius. Under these condit

Define need of vitamin e and k during pregnancy period, Define need of vita...

Define need of vitamin E and K during pregnancy period? Vitamin E needs are believed to increase during pregnancy but deficiency in humans rarely occurs. Vitamin E in the infan

What are the indications of cardiac transplantation, What are the indicatio...

What are the indications of Cardiac Transplantation ? Indication :  Patients in NYHA class IV with heart failure, refractory to medical management caused by end stage corona

What is the autophagic intracellular digestion, Q. What is the autophagic i...

Q. What is the autophagic intracellular digestion and why is this type of intracellular digestion intensified in an organism undergoing starvation? Autophagic intracellular dig

Define casein - tests for presence of exoenzymatic activity, Define Casein ...

Define Casein - Tests for Presence of Exoenzymatic Activity? Casein is a major milk protein composed of various amino acids linked through peptide bonds. Extra-cellular enzyme

What is nidation, What is nidation? In which phase of the menstrual cycle d...

What is nidation? In which phase of the menstrual cycle does nidation occur? Nidation is the implantantion of the embryo in the uterus. Nidation happens around the 7th day afte

Where do pga and glycine gain entry, Where do PGA and glycine gain entry re...

Where do PGA and glycine gain entry respectively after being formed during photorespiration in plants? What occurs to them immediately after?

Planeria, differnce between protonephridia and metanephridia

differnce between protonephridia and metanephridia

Explain about the maillard reaction, Explain about the Maillard Reaction? ...

Explain about the Maillard Reaction? The Maillard reaction sometimes called nonenzymatic, nonoxidative browning is simply the reaction between the amino group of a protein or

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