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RIFM fragrance ingredient safety assessment, 3-octyl acetate, CAS Registry Number 4864-61-3
Twenty years of photometric microlensing events predicted by Gaia DR2 : Potential planet-hosting lenses within 100 pc
Context. Gaia Data Release 2 (DR2) offers unparalleled precision on stars’ parallaxes and proper motions. This allows the prediction of microlensing events for which the lens stars (and any planets they possess) are nearby and may be well studied and characterised. Aims. We identify a number of potential microlensing events that will occur before the year 2035.5, 20 years from the Gaia DR2 refere
Pasta added with chickpea flour : Chemical composition, in vitro starch digestibility and predicted glycemic index
Pasta was prepared with of durum wheat flour mixed with chickpea flour at two different levels and its chemical composition, in vitro starch digestibility and predicted glycemic index were assessed. Protein, ash, lipid, and dietary fiber content increased while total starch decreased with the chickpea flour level in the composite pasta, all in accordance to the composition of the legume flour. Pot
Chemical composition and in vitro starch digestibility of corn tortillas with added amaranth flour
BACKGROUND: Corn tortillas containing 20% (w/w) amaranth flour (AF) were kept in cold storage and analysed after various times for chemical composition and in vitro starch digestibility, including predicted glycemic index. Comparison was made with traditional nixtamalised corn flour (NCF) tortillas. RESULTS: Lipid and protein contents were higher in mixed NCF/AF tortilla than in NCF tortilla. Avai
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In spite of the importance of legumes in Latin American diets, nutritional features of carbohydrates in these seeds are scarcely known. The purpose of this study was to assess the in vitro digestibility of starch in cooked powdered black beans, a common type of product in Mexico and Central America. The properties of a commercial product were compared to those of an experimental material obtained
Chemical composition and in vitro starch bioavailability of Phaseolus vulgaris (L) cv Mayocoba
Common beans of the Mayocoba variety were cooked (178 min) and evaluated regarding their chemical composition and starch digestibility in vitro. Mean physical characteristics of the Mayocoba grain were: thousand-kernel weight, 443.0 (±0.98)g; length, 12.45mm; width 7.84mm and thickness, 6.44mm. Total starch content in Mayocoba bean was 40.24% (dmb). The available starch was 22.87%, whereas resista
Chemical Composition, Starch Bioavailability and Indigestible fraction of Common Beans (Phaseolus Vulgaris L.)
In Mexico, consumption of beans represents 15% of the normal diet of the population in rural zones. Four common bean varieties cultivated in Mexico were studied regarding their chemical composition, starch digestibility and indigestible fraction. The protein level in the samples Huasteco, Tacana and TLP 19 was not different (α = 0.05), but Veracruz cultivar had the highest protein and ash content,
In vitro starch hydrolysis index and predicted glycemic index of corn tortilla, black beans (Phaseolus vulgaris L.), and Mexican "taco"
Effect of processing and storage time on in vitro digestibility and resistant starch content of two bean (Phaseolus vulgaris L) varieties
Seeds from two commercial bean varieties were cooked and stored for different times and analysed for chemical composition and in vitro starch digestibility. Parallel portions of cooked seeds were dried at 55°C, milled and stored as flours. In general, protein and ash contents in both samples did not change with storage time, but statistical differences were shown between the two varieties (p < 0.0
Preparation of indigestible pyrodextrins from different starch sources
Starch-modifying processes, such as pyrodextrinization, are potential ways to alter the nutritional features of this polysaccharide. A widely used method for pyrodextrinizing maize starch was also applied to lentil, sorghum, cocoyam, sagu, and cassava starches, and the in vitro digestibility of the products was evaluated. Pyrodextrins were produced by heating starch at 140°C for 3 h, with catalyti
Resistant starch formation does not parallel syneresis tendency in different starch gels
The retrograded resistant starch contents (RS-III) and syneresis indices of cold stored starch gels were compared. Isolated starches from three cereals (maize, sorghum and rice), two legumes (jack bean and lentil) and arracacha roots (Arracacia xanthorrhiza) were hydrated and gelatinized by boiling. Drained gels were stored for 24 h at 4°C before the analyses. Neither apparent amylose contents nor
Chemical, physical and morphometric properties of Peruvian carrot (Arracacia xanthorrhiza B.) starch
Starch was isolated from Peruvian carrot (PC) -or arracacha- (Arraccacia xanthorrhiza B.) roots. Its chemical, physical, physicochemical and granular structural properties were compared to those of commercial cassava starch. Scanning electron microscopy revealed a granular size for PC starch ranging between 4 and 26 μm in diameter, with spherical and truncated-egg shapes. PC and cassava starches w
Bioavailability of carbohydrates in legumes : digestible and indigestible fractions.
Despite their important contribution to seed weight, carbohydrates in pulses have received limited attention. However, experimental evidence accumulated during the last two decades indicate that legumes are rich sources of slowly digestible starch promoting moderate postprandial glycernic and insulinemic responses. Although the reasons for this phenomenon are not completely understood, some intrin
Cell walls limit in vitro protein digestibility in processed legume seeds
Legume seeds were treated in various ways, e.g. cooking applied either before or after milling, in order to obtain flours with different microstructural properties. In vitro protein digestibility was assessed by a pepsin/pancreatin index. In all cases digestibility was enhanced by cooking, although final values varied depending on the flour preparation procedure. Cooked and milled seeds, which ret
Effect of processing on metabolic response to legumes
An in vitro procedure based on chewing to predict metabolic response to starch in cereal and legume products
A new method for measuring the rate of in-vitro starch digestion in products with a structure 'as eaten' is introduced. An equivalent amount of potentially available starch from each product was chewed by subjects, expectorated into a beaker and incubated with pepsin. The incubate was thereafter transferred to a dialysis tubing and incubated with pancreatic α-amylase for 3 h. Samples were removed
Starch digestibility in the diabetic rat
The digestibility of a mixture of starches was evaluated in balance experiments, with both normal and streptozotocin-induced diabetic rats treated with antibiotics to prevent colonic fermentation of unabsorbed material. Pancreatic amylase production in the diabetic animals was only 10% of the normal level. In spite of this, only a minor decrease in the total starch digestibility index was recorded
Analytical and Nutritional Implications of Limited Enzymic Availability of Starch in Cooked Red Kidney Beans
Measured with an enzymic method, the starch content of a raw red kidney bean (Phaseolus vulgaris) flour (RBF) was higher than that of a cooked and blended (CBB) and of a cooked, freeze-dried, and milled (CBF) preparation of the seeds. Wet homogenization as well as pepsin pretreatment of CBF increased the starch yield, indicating that starch in the cooked samples is not completely available to enzy
Subtilisin inhibitors in legume seeds.
Subtilisin inhibitors (SI) having an average molecular mass of 8 kDa purified from jack beans (Canavalia ensiformis) and broad beans (Vicia faba) to electrophoretical homogeneity are compared to those isolated from chick peas (Cicer arietinum) and black beans (Phaseolus vulgaris). The specificity spectrum of SI is restricted to microbial serine proteinases. Their interaction with subtilisin Carlsb