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Isolation and functional properties ...

Pacreu, Jaime.

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Isolation and functional properties of the milk fat globule membrane derived from industrial buttermilk.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Isolation and functional properties of the milk fat globule membrane derived from industrial buttermilk./
作者:	Pacreu, Jaime.
面頁冊數:	102 p.
附註:	Source: Masters Abstracts International, Volume: 45-05, page: 2325.
Contained By:	Masters Abstracts International45-05.
標題:	Agriculture, Food Science and Technology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR25463
ISBN:	9780494254639

Isolation and functional properties of the milk fat globule membrane derived from industrial buttermilk.
Pacreu, Jaime.

Isolation and functional properties of the milk fat globule membrane derived from industrial buttermilk. - 102 p.

Source: Masters Abstracts International, Volume: 45-05, page: 2325.

Thesis (M.Sc.)--University of Guelph (Canada), 2006.

Buttermilk, the byproduct of buttermaking, contains caseins, whey proteins and also material from the original milk fat globule membrane (MFGM). MFGM is mainly composed of unique proteins and phospholipids. It has the potential to be used as a novel functional ingredient; however, a method to isolate MFGM in industrial scale still needs to be developed. This research focused on testing various pilot plant microfiltration systems to separate MFGM from commercial buttermilk and then test some of the functional properties of the isolate obtained.

ISBN: 9780494254639Subjects--Topical Terms:

1017813
Agriculture, Food Science and Technology.

Isolation and functional properties of the milk fat globule membrane derived from industrial buttermilk.
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245 1 0 $a Isolation and functional properties of the milk fat globule membrane derived from industrial buttermilk.
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500 $a Source: Masters Abstracts International, Volume: 45-05, page: 2325.
502 $a Thesis (M.Sc.)--University of Guelph (Canada), 2006.
520 $a Buttermilk, the byproduct of buttermaking, contains caseins, whey proteins and also material from the original milk fat globule membrane (MFGM). MFGM is mainly composed of unique proteins and phospholipids. It has the potential to be used as a novel functional ingredient; however, a method to isolate MFGM in industrial scale still needs to be developed. This research focused on testing various pilot plant microfiltration systems to separate MFGM from commercial buttermilk and then test some of the functional properties of the isolate obtained.
520 $a Two microfiltration units with different pore size membranes were employed; and optimal conditions for separation of MFGM were achieved using 1.4mum ceramic membranes in a pilot plant scale cross-flow microfiltration unit. Results demonstrated that microfiltration of buttermilk with sodium citrate allowed retention of high concentrations of MFGM material. Some whey protein was still present in the retentate, because of the aggregation caused by heat processing of buttermilk. Analysis of the protein composition of buttermilk retentates with no citrate added showed that casein was still retained in the concentrate; demonstrating that sodium citrate is required to disrupt casein micelles and obtain a retentate rich in MFGM.
520 $a The oxidative stability of menhaden fish oil-in-water emulsions prepared with Tween 20 and MFGM was compared to that of control emulsions stabilized with Tween 20. The stability was measured during a fifteen day incubation period quantifying the formation of lipid hydroperoxides by spectrophotometry and the presence or absence of o-3 fatty acids by gas chromatography. The oxidation rate of the emulsions containing MFGM material was significantly lower compared to a control emulsion prepared with Tween 20 alone, the lipid hydroperoxide formation rate was slower and the o-3 fatty acids were still present in the MFGM containing emulsions after the incubation period. This demonstrated that MFGM material obtained from industrial buttermilk could be used as an encapsulating agent with antioxidant properties.
590 $a School code: 0081.
650 4 $a Agriculture, Food Science and Technology. $3 1017813
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710 2 $a University of Guelph (Canada). $3 1018650
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793 $a English
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