Although considered by-products of cheese production, milk whey, deproteinized whey and valuable components extracted from them, have several commercial uses as nutritional supplements and processing aids. In order to verify the safety of these products, destiny of AFM1 contaminating whey and deproteinized whey subjected to different technological treatments was investigated. During Ricotta cheese production the main part of AFM1, on average 94%, was lost in the liquid portion, while only 6% remained in the curd. Whey and deproteinized whey remaining from Ricotta cheese production were then subjected to ultrafiltration and spray-drying. In the first case, ultrafiltration coupled with diafiltration allowed to remove more than 90% of toxin without losing proteins. Spray-drying was efficient in reducing AFM1 contamination, too: in whey, toxin recovery was around 60%, aligned with powder recovery, while in deproteinized whey AFM1 recovery was around 39%, by far lower than powder recovery, confirming a loss.

Behavior of Aflatoxin M1 in dairy wastes subjected to different technological treatments: Ricotta cheese production, ultrafiltration and spray-drying / T.M.P. Cattaneo, L. Marinoni, S. Iametti, L. Monti. - In: FOOD CONTROL. - ISSN 0956-7135. - 32:1(2013 Jul), pp. 77-82. [10.1016/j.foodcont.2012.11.007]

Behavior of Aflatoxin M1 in dairy wastes subjected to different technological treatments: Ricotta cheese production, ultrafiltration and spray-drying

L. Marinoni;S. Iametti
Penultimo
;
2013

Abstract

Although considered by-products of cheese production, milk whey, deproteinized whey and valuable components extracted from them, have several commercial uses as nutritional supplements and processing aids. In order to verify the safety of these products, destiny of AFM1 contaminating whey and deproteinized whey subjected to different technological treatments was investigated. During Ricotta cheese production the main part of AFM1, on average 94%, was lost in the liquid portion, while only 6% remained in the curd. Whey and deproteinized whey remaining from Ricotta cheese production were then subjected to ultrafiltration and spray-drying. In the first case, ultrafiltration coupled with diafiltration allowed to remove more than 90% of toxin without losing proteins. Spray-drying was efficient in reducing AFM1 contamination, too: in whey, toxin recovery was around 60%, aligned with powder recovery, while in deproteinized whey AFM1 recovery was around 39%, by far lower than powder recovery, confirming a loss.
Aflatoxin M-1; Dairy wastes; Ricotta cheese; Ultrafiltration; Spray-drying
Settore AGR/15 - Scienze e Tecnologie Alimentari
Settore AGR/16 - Microbiologia Agraria
Settore BIO/10 - Biochimica
lug-2013
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/223105
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