Effect of Water Regimes on Dietary Fiber, Polyphenols and Antioxidant Capacity of Black and Pinto Beans

Beans are rich in dietary fiber and polyphenols;however, growing conditions may affect the occurrence of these components. The effect of irrigation and rain fed conditions on dietary fiber, indigestible fraction, polyphenols and antioxidant capacity of Black 8025 and Pinto Durango bean cultivars grown in Mexico have been determined. Total dietary fiber decreased in beans grown under rain fed conditions compared to those grown under irrigation. The water regimes had an effect on the total indigestible fraction for Black 8025 bean. The extractable polyphenols were affected by the water regimes, while the antioxidant capacity of extractable and non-extractable polyphenols was dependent on the bean variety. Cooking the beans altered the extractable and non-extractable polyphenols and the antioxidant capacity. Also, the antioxidant properties and some extend, the digestibility of non-digestible carbohydrates of beans were affected by water regimes. This information could be taken into account for dry bean breeding programs to improve the nutritional quality of beans.

Cellular Forms in Cultivation in Suspension of Bougainvillea glabra Choisy Variety Surprise

The objective of this work was to describe the predominant cell forms in the phases of growth kinetics in a suspension culture of the Bougainvillea glabra Choisy variety Surprise.Treatments in suspension with Murashige and Skoog(MS)basal culture medium were supplemented with six different concentrations and combinations of vegetable growth regulator(VGR)of type auxin(2,4-D and NAA)and cytokinin(BAP)(0.2-5.3 mg/L)and a control.Friable callus was obtained from leaf explants ex vitro to in vitro culture in solid MS medium using PhytagelTM as gelling agent to 2.2 g/L.A portion of callus(1.0 g)was used as cellular inoculum and grown under controlled conditions(50 mL,120 rpm,25°C and luminous intensity of 48μmol m2/s).The best treatment with significant differences(p≤0.05)were with a hormonal relation of 2:1 of BAP and NAA,respectively,with a fresh weight yield ranging from 1.7905 g to 5.8340 g,which represents around 70%.An adaptation phase was observed from day 0 to day 14 on the curve of fresh weight;an exponential phase at day 14 to day 19 and a declination phase at day 21.Cellular forms in the adaptation phase were elongated cells,a few globular and a few with kidney shape.In the exponential phase,these cells formed small aggregates of globular cells.In the death phase,brown,elongated,damaged and fragmented cells were found.Whit this data obtained it is possible to establish the subculture time in fresh medium.

Potential of sea buckthorn-based ingredients for the food and feed industry-a review

Food industries seek to incorporate nutritious ingredients as they could bring added value to the final food products.One of the most interesting options is that sea buckthorn contains high concentrations of vitamin C,carotenoids,tocopherols,and other bioactive compounds,in addition to the unique lipid profile in the berry pulp,seed,and peel.This review summarizes the state-of-the-art of potential applications of sea buckthorn within the food and feed industry based on previously described applications.Products such as cheese,yoghurt or beverages already benefit from its application.Moreover,using sea buckthorn in feed products also derives into higher quality final products(e.g.meat quality,egg quality).Poultry,pig,and fish farming have been studied for that purpose.Despite all the accumulated articles depicted in the present review,the use of this fruit in food product formulation is nowadays scarce.New options for food product development with sea buckthorn are herein discussed.