The consumption of dehydrated vegetables, which provides an important source of vitamins, is increasing worldwide. Dehydrated vegetables are located on non-refrigerated shelves in food shops and, therefore, it is of utmost importance to understand the modifications that take place in the content of these labile micronutrients at the ambient conditions currently found in food shops. The present study discusses the effect of storage for 3, 6, 9 and 12 months on the content of thiamin and vitamin C in different commercial and pilot plant dehydrated garlic, onions, potatoes and carrots in darkness at room temperature under vacuum conditions.
View Article and Find Full Text PDFThe effect of liquid (LSF) and solid state fermentation (SSF) of lentils for production of water-soluble fractions with antioxidant and antihypertensive properties was studied. LSF was performed either spontaneously (NF) or by Lactobacillus plantarum (LP) while SSF was performed by Bacillus subtilis (BS). Native lactic flora in NF adapted better than L.
View Article and Find Full Text PDFLactic acid bacteria (LAB) isolated from soy milk were used to produce a multifunctional fermented food. Seven isolates were screened for their ability to produce peptides and free isoflavones in soy milk. The antihypertensive, antioxidant, and anti-inflammatory properties of the resulting fermented soy milks were evaluated in vitro using biochemical assays.
View Article and Find Full Text PDFThe influence of two Spanish growing locations with well-differentiated climatic conditions (northern and eastern areas) on the main bioactive compounds, glucosinolates (GLS), total phenolic compounds (TPC), and vitamin C, as well as myrosinase activity and antioxidant capacity in five white cabbage ( Brassica oleracea L. var. capitata) cultivars was investigated.
View Article and Find Full Text PDFConvective air drying and power ultrasound effects on vitamin C and β-carotene contents in carrots were studied. For convective air drying, a central composite face-centered design fitting temperature between 40 and 65 °C and air flow rate between 2 and 6 × 10(-1) m/s were used; previously, carrots were blanched. Likewise, ultrasound drying was performed on both unblanched and blanched carrots at 20, 40, and 60 °C for 120, 90, and 75 min, respectively.
View Article and Find Full Text PDFThe aim of the present work was to optimize fermentation conditions of white cabbage ( Brassica oleracea L. var. capitata cv.
View Article and Find Full Text PDFThe selenium supply in almost all European countries is below the recommended daily intake, and different strategies are followed to fortify foods. In the present work, the influence of germination of garden cress ( Lepidium sativum cv. Ogrodowa) in different selenium solutions (Na(2)SeO(3) and Na(2)SeO(4)) on Se uptake, total antioxidant capacity, glucosinolates, protein, and amino acids was studied.
View Article and Find Full Text PDFThe effect of different selenium solutions during germination of lupin seeds (Lupinus angustifolius L. cv. Zapaton) on the content of total selenium, protein, amino acids, soluble carbohydrates, total antioxidant activity, and cytotoxicity on HL-60 human leukemic cell line has been studied.
View Article and Find Full Text PDFCrit Rev Food Sci Nutr
April 2008
This review focuses on updated information about alpha-galactosides, their chemical structure, biosynthesis, plant physiological functions, occurrence in foods, positive and negative physiological effects in animals, changes during food processing, and their potential application as prebiotics in the food industry. Although alpha-galactosides are considered as the main flatus-causing factors, they are also involved in several important functions during plant and seed development and beneficially stimulate the growth and activity of living bifidobacteria and lactobacilli in the human colon. We focus here also on legumes as a source of this kind of prebiotics as potential health promoters.
View Article and Find Full Text PDFThree cultivars of broccoli seeds (Brassica oleracea var. italica), cv. Tiburon, cv.
View Article and Find Full Text PDFFood allergy has become a public health problem that continues to challenge both the public and the food industry. The objective of this research was the detection and quantification of the major human allergenic soy proteins and to study the reduction in immunoreactivity and improvement of amino acid content after fermentation of soybean flour. Fermentation was carried out in the solid state of cracked seeds inoculated with Aspergillus oryzae, Rhizopus oryzae, and Bacillus subtilis and in the liquid state of milled soybean flours fermented naturally by microorganisms present only in the seeds or by inoculation with Lactobacillus plantarum.
View Article and Find Full Text PDFThe effect of the germination of peas, beans, and lentils under differing conditions of illumination for different times on parameters linked to the Maillard reaction (chemically available free and intrachain lysine, lysine availability, and furosine) was evaluated. The chemically available free lysine content in the raw seeds of the three legumes was quite small compared to the chemically available intrachain lysine content, and furosine was detectable only in the beans and the lentils. The effect of germination was to increase lysine availability compared with levels in the raw seeds in all of the germinated samples, the smallest increase taking place in the lentils.
View Article and Find Full Text PDFThe effect of fermentation on the antioxidant compounds [vitamins C and E, total phenolic compounds (TPC), and reduced glutathione (GSH)], and antioxidant capacity [superoxide anion scavenging activity (SOD-like activity), peroxyl radical-trapping capacity (PRTC), inhibition of phosphatidylcholine (PC) peroxidation, and Trolox equivalent antioxidant capacity (TEAC)] of soybean (Glycine max cv. Merit) was studied. Fermentation was carried out in solid state in cracked seeds inoculated with Aspergillus oryzae, Rhizopus oryzae, Bacillus subtilis, and Lactobacillus plantarum and in liquid state either in cracked seeds or milled soybean flours fermented naturally by only the microorganisms present in the seeds or by inoculation with L.
View Article and Find Full Text PDFMicrobial population and bioactive amine profile and levels of two lupin species (Lupinus luteus L. cv. 4492 and Lupinus angustifolius L.
View Article and Find Full Text PDFThe raffinose family of oligosaccharides (RFOs) isolated from lupin seeds (Lupinus albus var. Multolupa) was evaluated for bifidogenic effects during the manufacture of probiotic fermented milk. A mixed starter inoculum was composed of Bifidobacterium lactis Bb-12 and Lactobacillus acidophilus (1:1).
View Article and Find Full Text PDFThe inositol phosphate content of naturally fermented cowpeas (Vigna sinensis var. Carilla) was studied using ion-pair HPLC and 1H NMR spectroscopy. The fermented flour was extracted with 0.
View Article and Find Full Text PDFObjective: We assessed the effect of germinating Pisum sativum L. variant Arvense cv. Esla for 3 and 6 d in darkness on the chemical composition and nutritive utilization of protein and carbohydrates.
View Article and Find Full Text PDFCowpea (Vigna sinensis L. var. Carilla) flours obtained by fermentation with inoculum Lactobacillus plantarum (PF) or with the natural microorganisms present in the flour (NF) and subsequent heat treatment in an autoclave were prepared to study the effect of fermentation on the antioxidant vitamin content and on the antioxidant capacity.
View Article and Find Full Text PDFImprovement of a previously described method of purification of alpha-galactosides, members of the raffinose family of oligosaccharides (RFOs), has been developed for lupins. The considerable amount of sucrose present in the RFO preparations obtained by the previous method has been removed by modifying the purification stage on diatomaceous earth and charcoal. The present method allows for the preparation of high-purity RFOs containing approximately 99.
View Article and Find Full Text PDFNatural fermentation and an inoculum containing 10% (vol/vol) Lactobacillus fermentum or Lactobacillus plantarum were used to obtain fermented flours from Vigna sinensis L. var. carilla seeds that had been washed with distilled water and dried at 55 degrees C for 24 h.
View Article and Find Full Text PDFThe effect of mild hydrothermal treatment and the addition of phytase under optimal conditions (pH 5.5, 37 degrees C) on the nutritive utilization of the protein of pea (Pisum sativum L.) flour was studied in growing rats by examining the chemical and biological balance.
View Article and Find Full Text PDFBiological activity tests were performed on alpha-galactoside preparations obtained from Lupinus angustifolius L. cv. Mirela (alkaloid-rich) and Pisum sativum L.
View Article and Find Full Text PDFThe effect of the application of CO for extending the storage life of raw cow's milk on the retention of some vitamins-all--retinol, 13--retinol, β-carotene, α tocopherol, γ tocopherol, thiamin and riboflavin-and on the growth of psychrotrophic spoilage bacteria has been studied. Raw cow's milk samples were acidified by bubbling CO through them to pH 6.0 and 6.
View Article and Find Full Text PDFLentils have been soaked with and without light to investigate the effect of the light on carbohydrates and soluble vitamins during the soaking process. Soaking significantly decreased the α-galactoside content of lentils (3.2% to 1.
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