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Evaluation of Processing Variables t...

Mishra, Achyut.

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Evaluation of Processing Variables to Increase the Solids of Milk Protein Concentrates Prior to Drying.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Evaluation of Processing Variables to Increase the Solids of Milk Protein Concentrates Prior to Drying./
作者:	Mishra, Achyut.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
面頁冊數:	263 p.
附註:	Source: Dissertations Abstracts International, Volume: 82-07, Section: B.
Contained By:	Dissertations Abstracts International82-07B.
標題:	Food science. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28259408
ISBN:	9798557032568

Evaluation of Processing Variables to Increase the Solids of Milk Protein Concentrates Prior to Drying.
Mishra, Achyut.

Evaluation of Processing Variables to Increase the Solids of Milk Protein Concentrates Prior to Drying. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 263 p.

Source: Dissertations Abstracts International, Volume: 82-07, Section: B.

Thesis (Ph.D.)--South Dakota State University, 2020.

This item must not be sold to any third party vendors.

It is a common practice in dairy industries to nanofilter milk protein concentrate (MPC) to increase the solids and further drying efficiency. Increasing protein and solids in MPC increases viscosity and resist feed-flow in membrane filtration. Previous research proved that increased temperature and hydrodynamic cavitation (HC) have significantly reduced the viscosity of MPC which can potentially increase the level of solids by reducing concentration polarization during nanofiltration (NF). We utilized plate and frame filtration (PF) as an alternate method to reduce the viscosity of MPC. In first objective, we studied the application of HC or elevated temperature (50˚C) or both to concentrate MPC with 80% protein (MPC80) based on total solids (TS) using NF. Three replicates of MPC80 having 20% TS were concentrated in NF system at 22 and 50˚C. HC did not have a significant impact on average flux but increased the TS significantly. Study showed that increased temperature or its combined action with HC improves NF performance in MPC filtration. In second objective, we studied the functionality of MPC80 powder after spray drying of NF retentates from first objective. Study showed that, higher temperature NF impacted on rennet coagulation time (RCT), wetting time, and heat coagulation time of the powders. Both HC and elevated temperature did not impact on flowability and emulsion capacity whereas HC alone improved dissolution and foaming capacity of the powders. Study showed that NF temperature and HC have important impacts on the functionality of MPC80. In third objective, we studied the application of PF in MPC80 concentration at 22 and 50˚C using flat-sheet ultrafiltration membrane. Average flux, final TS, and total protein to TS ratio were increased significantly at higher temperature PF. Study showed that increased temperature improves PF performance in MPC filtration. In fourth objective, we studied the functionality of MPC powders after spray drying of feed and PF retentates from third objective. Higher temperature PF impacted on RCT, wettability and solubility but improved foaming capacity and emulsion stability of the powders. Study showed that temperature optimization is important for concentrating MPC80 in PF system to maintain its functionality.

ISBN: 9798557032568Subjects--Topical Terms:

3173303
Food science.
Subjects--Index Terms:

Functionality

Evaluation of Processing Variables to Increase the Solids of Milk Protein Concentrates Prior to Drying.
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300 $a 263 p.
500 $a Source: Dissertations Abstracts International, Volume: 82-07, Section: B.
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520 $a It is a common practice in dairy industries to nanofilter milk protein concentrate (MPC) to increase the solids and further drying efficiency. Increasing protein and solids in MPC increases viscosity and resist feed-flow in membrane filtration. Previous research proved that increased temperature and hydrodynamic cavitation (HC) have significantly reduced the viscosity of MPC which can potentially increase the level of solids by reducing concentration polarization during nanofiltration (NF). We utilized plate and frame filtration (PF) as an alternate method to reduce the viscosity of MPC. In first objective, we studied the application of HC or elevated temperature (50˚C) or both to concentrate MPC with 80% protein (MPC80) based on total solids (TS) using NF. Three replicates of MPC80 having 20% TS were concentrated in NF system at 22 and 50˚C. HC did not have a significant impact on average flux but increased the TS significantly. Study showed that increased temperature or its combined action with HC improves NF performance in MPC filtration. In second objective, we studied the functionality of MPC80 powder after spray drying of NF retentates from first objective. Study showed that, higher temperature NF impacted on rennet coagulation time (RCT), wetting time, and heat coagulation time of the powders. Both HC and elevated temperature did not impact on flowability and emulsion capacity whereas HC alone improved dissolution and foaming capacity of the powders. Study showed that NF temperature and HC have important impacts on the functionality of MPC80. In third objective, we studied the application of PF in MPC80 concentration at 22 and 50˚C using flat-sheet ultrafiltration membrane. Average flux, final TS, and total protein to TS ratio were increased significantly at higher temperature PF. Study showed that increased temperature improves PF performance in MPC filtration. In fourth objective, we studied the functionality of MPC powders after spray drying of feed and PF retentates from third objective. Higher temperature PF impacted on RCT, wettability and solubility but improved foaming capacity and emulsion stability of the powders. Study showed that temperature optimization is important for concentrating MPC80 in PF system to maintain its functionality.
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653 $a Drying efficiency
653 $a Membrane filtration
653 $a Polarization
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