Bioaccessibility of tocopherols, carotenoids, and ascorbic acid from milk- and soy-based fruit beverages: influence of food matrix and processing.
A study was made of the effect of high-pressure processing (HPP) and thermal treatment (TT) on plant bioactive compounds (tocopherols, carotenoids, and ascorbic acid) in 12 fruit juice-milk beverages and of how the food matrix [whole milk (JW), skimmed milk (JS), and soy milk (JSy)] modulates their bioaccessibility (%). HPP (400 MPa/40 °C/5 min) produced a significant decrease in carotenoid and ascorbic acid bioaccessibility in all three beverages and maintained the bioaccessibility of tocopherols in JW and JS while decreasing it in JSy. TT (90 °C/30 s) produced a significant decrease in tocopherol and carotenoid bioaccessibility in all three beverages and increased the bioaccessibility of ascorbic acid. With regard to the food matrix, α-tocopherol and ascorbic acid bioaccessibility was greatest in JW beverages and lowest in JSy beverages, whereas no significant differences were found among the three beverages in terms of carotenoid bioaccessibility. HPP-treated samples showed higher tocopherol and carotenoid bioaccessibility than TT-treated samples, thus indicating that HPP combined with a milk matrix positively modulates the bioaccessibility of certain types of bioactive components of food, mainly those of a lipophilic nature.
Nutrition and Food Chemistry, Faculty of Pharmacy, University of Valencia, Avenida Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain. antonio.cilla@uv.es
Antonio
A
Cilla
Amparo
A
Alegría
Begoña
B
de Ancos
Concepción
C
Sánchez-Moreno
M Pilar
MP
Cano
Lucía
L
Plaza
Gonzalo
G
Clemente
María J
MJ
Lagarda
Reyes
R
Barberá
D000818:Animals; D001205:Ascorbic Acid / Q000032:analysis / Q000493:pharmacokinetics*; D001628:Beverages / Q000032:analysis; D001682:Biological Availability; D002338:Carotenoids / Q000032:analysis / Q000493:pharmacokinetics*; D005511:Food Handling / Q000379:methods*; D005638:Fruit / Q000737:chemistry; D006358:Hot Temperature; D066298:In Vitro Techniques; D008892:Milk / Q000737:chemistry*; D011312:Pressure; D045730:Soy Foods / Q000032:analysis*; D024505:Tocopherols / Q000032:analysis / Q000493:pharmacokinetics*
D002338:Carotenoids; D001205:Ascorbic Acid; D024505:Tocopherols