Effect of ultra high pressure homogenization treatment on the bioactive compounds of soya milk.
Ultra high pressure homogenization (UHPH) is a useful novel technology to obtain safe and high-quality liquid foods. The effect of UHPH at 200 and 300 MPa in combination with different inlet temperatures (Tin) (55, 65 and 75 °C) on the bioactive compounds of soya milk was studied. Total phytosterols increased with the higher combination of pressure and temperature. The main phytosterol was β-sitosterol, followed by stigmasterol and campesterol. Total tocopherols in UHPH-treated soya milks decreased as the temperature and pressure increased. UHPH treatment also affected the different chemical forms of tocopherols. No biogenic amines were detected in any of the analyzed soya milks. Meanwhile, the polyamines SPD and SPM were found in all soya milks, being stable to the UHPH treatment. Total isoflavones increased with the higher combination of pressure and temperature. No differences in the isoflavone profile were found, with β-glucoside conjugates being the predominant form.
Department of Nutrition and Food Science-XaRTA, INSA, Faculty of Pharmacy, Campus de l'Alimentació Torribera, University of Barcelona, Avda. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Barcelona, Spain.
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Toro-Funes
Department of Nutrition and Food Science-XaRTA, INSA, Faculty of Pharmacy, Campus de l'Alimentació Torribera, University of Barcelona, Avda. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Barcelona, Spain.
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Bosch-Fusté
Department of Nutrition and Food Science-XaRTA, INSA, Faculty of Pharmacy, Campus de l'Alimentació Torribera, University of Barcelona, Avda. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Barcelona, Spain.
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Veciana-Nogués
Department of Nutrition and Food Science-XaRTA, INSA, Faculty of Pharmacy, Campus de l'Alimentació Torribera, University of Barcelona, Avda. Prat de la Riba 171, 08921 Santa Coloma de Gramenet, Barcelona, Spain. Electronic address: mcvidal@ub.edu.
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Vidal-Carou
D005511:Food Handling / Q000295:instrumentation / Q000379:methods*; D007529:Isoflavones / Q000032:analysis; D010840:Phytosterols / Q000032:analysis; D010936:Plant Extracts / Q000032:analysis*; D011312:Pressure; D041942:Soy Milk / Q000737:chemistry*; D013025:Glycine max / Q000737:chemistry*; D013696:Temperature
D007529:Isoflavones; D010840:Phytosterols; D010936:Plant Extracts
Isoflavones; Phytosterols; Polyamines; Soy milk; Tocopherols; UHPH