Effect of dietary alpine butter rich in conjugated linoleic acid on milk fat composition of lactating sows

Multiparous sows (n 17) were included in a controlled cross-over-study in order to investigate the influence of a natural source of conjugated linoleic acid (CLA) (alpine butter) on the milk fatty acid composition of lactating sows (as an animal model for lactating women) and on the growth performance of their progeny. The usual fat source of a standard lactation diet was replaced by either CLA-rich alpine butter or margarine (control diet). Compared with the margarine diet, feeding the alpine butter-supplemented diet increased (P0·05) affected. Growth performance of the progeny was similar for both dietary treatments. In summary, the findings show that adding alpine butter to the diet does not provoke a milk fat depression and does not alter the composition of total SFA, MUFA and PUFA in sow milk but increases its CLA concentratio

Application de méthodes d'analyse statistique univariée et multivariée à l'étude parallèle de critères chimiques, biochimiques, rhéologiques, microbiologiques et sensoriels du fromage d'emmental au moment de sa taxation Partie I: Analyse de quelques profils de distribution

This multidisciplinary study of Swiss Emmental cheese relates values determined by chemical, biochemical, rheological, and bacteriological analyses to those obtained by sensoric analysis of taste as well as tactile and visual properties. To this effect, 50 four-months-old Emmental loaves of different qualities were chosen at their taxation and submitted to 165 analyses; six of these analyses were sensoric evaluations. The instrumental analyses included quantitative determination of water, fat, salt, volatile fatty acids, lactic acid (L and D), nitrogen fractions (TN, WSN, NPN), ammonia, free amino acids, biogenic amines, one peptide, and volatile components. The latter were analyzed with two different methods. Moreover, two microbiological analyses were carried out (non-lactic-acid bacteria and streptococci of group D), four rheological measurements (penetration depth, stress at 33% deformation, compression rate and stress at peak stress point) and determination of three colour components according to Hunter. The sensoric taste analysis permitted us to evaluate the flavour development, the typical character and the quality of the cheese. The tactile analysis enabled us to characterize the texture, structure, and consistency and the visual evaluation to examine the eyes of the cheese body. The first part of this paper divided into 3 parts deals with univariate analysis of distribution profiles of some characteristic measurable variables for Swiss Emmental cheese

Maternal dietary alpine butter intake affects human milk: Fatty acids and conjugated linoleic acid isomers

Consumption of CLA by lactating women affects the composition of their milk, but the pattern of the different CLA isomers is still unknown. We determined the effects of short maternal supplementation with CLA-rich Alpine butter on the occurrence of FA and CLA isomers in human milk. In an open randomized controlled study with a two-period cross-over design, milk FA and CLA isomer concentrations were measured on postpartum days >-20 in two parallel groups of lactating women before, during, and after consumption of defined quantities of Alpine butter or margarine with comparable fat content (10 d of butter followed by 10 d of margarine for one group, and vice versa in the other). In the 16 women who completed the study (8/group), Alpine butter supplementation, increased the C16 and C18 FA, the sum of saturated FA, the 18∶1 trans FA, and the trans FA with CLA. The CLA isomer 18∶2 c9, t11 increased by 19.7%. Significant increases were also found for the isomers t9,t111, t7,c9,t11,c13, and t8,c10 18∶2. The remaining nine of the total 14 detectable isomers showed no changes, and concentrations were <5 mg/100g fat. A breastfeeding mother can therefore modulate the FA/CLA supply of her child by consuming Alpine butter. Further studies will show whether human milk containing this FA and CLA isomer pattern acts as a functional food for newborn

Optimising the Addition of Transglutaminase in the Preparation of Sour Milk Products [1]

The addition of transglutaminase in yoghurt production was examined in a diploma thesis. In comparison to the control sample, it was possible to reduce the thermal treatment of the yoghurt milk and to entirely eliminate the addition of skim milk powder. The resulting product showed a high gel strength and only slight whey separation. The incubation temperature proved to be an important factor for success

Maternal dietary alpine butter intake affects human milk: Fatty acids and conjugated linoleic acid isomers

Consumption of CLA by lactating women affects the composition of their milk, but the pattern of the different CLA isomers is still unknown. We determined the effects of short maternal supplementation with CLA-rich Alpine butter on the occurrence of FA and CLA isomers in human milk. In an open randomized controlled study with a two-period cross-over design, milk FA and CLA isomer concentrations were measured on postpartum days >-20 in two parallel groups of lactating women before, during, and after consumption of defined quantities of Alpine butter or margarine with comparable fat content (10 d of butter followed by 10 d of margarine for one group, and vice versa in the other). In the 16 women who completed the study (8/group), Alpine butter supplementation, increased the C16 and C18 FA, the sum of saturated FA, the 18∶1 trans FA, and the trans FA with CLA. The CLA isomer 18∶2 c9, t11 increased by 19.7%. Significant increases were also found for the isomers t9,t111, t7,c9,t11,c13, and t8,c10 18∶2. The remaining nine of the total 14 detectable isomers showed no changes, and concentrations were <5 mg/100g fat. A breastfeeding mother can therefore modulate the FA/CLA supply of her child by consuming Alpine butter. Further studies will show whether human milk containing this FA and CLA isomer pattern acts as a functional food for newborn