Results 31 to 40 of about 405,511 (346)

Crystalline Pepsin [PDF]

open access: yesScience, 1929
A method is described for the preparation of a crystalline protein from commercial pepsin preparations which has powerful peptic activity. The composition, optical activity, and proteolytic activity of this protein remain constant through seven successive crystallizations.
openaire   +8 more sources

Enzymatic modification of cassava starch (Corpoica M-Tai) around the pasting temperature

open access: yesDyna, 2018
Cassava starch variety Corpoica – TAI, was modified with a commercial α-amylase, in order to evaluate the effects of temperature, reaction time and enzyme/substrate (E/S) ratio on the degree of hydrolysis, and production of enzymatic modified starches ...
Jairo Salcedo-Mendoza   +3 more
doaj   +1 more source

Thermal and Thermomechanical Characterization of Polypropylene-Seed Shell Particles Composites

open access: yesApplied Sciences, 2022
The use of plant waste, such ashusks, fibers, and bagasse, as additives in polymeric matrices generated great interest recently, since they became an option to be used as additives, reinforcers, or only as fillers.
José Luis Rivera-Armenta   +5 more
doaj   +1 more source

Formulation of a Synergistic Enzyme Cocktail for Controlled Degradation of Sorghum Grain Pericarp

open access: yesFoods, 2023
Sorghum is one of the major grains produced worldwide for food and fodder, owing to its nutritional profile advantages. However, the utilisation of whole grain sorghum as an ingredient in conventional food formulations is limited due to its poor ...
N. U. Sruthi   +3 more
doaj   +1 more source

Chemical weathering and provenance evolution of Holocene–Recent sediments from the Western Indus Shelf, Northern Arabian Sea inferred from physical and mineralogical properties [PDF]

open access: yes, 2012
We present a multi-proxy mineral record based on X-ray diffraction and diffuse reflectance spectrophotometry analysis for two cores from the western Indus Shelf in order to reconstruct changing weathering intensities, sediment transport, and provenance ...
Clift, Peter D.   +5 more
core   +2 more sources

Constrained Amorphous Interphase and Mechanical Properties of Poly(3-Hydroxybutyrate-co-3-Hydroxyvalerate)

open access: yesFrontiers in Chemistry, 2019
In the present study, for the first time the evolution of tensile mechanical properties of different poly(3-hydroxybutyrate-co-3-hydroxyvalerate) copolymers (PHBV8 and PHBV12, with 8 mol% and 12 mol% of HV co-units, respectively) as a function of the ...
Maria Cristina Righetti   +7 more
doaj   +1 more source

Crystalline Nephropathies [PDF]

open access: yesArchives of Pathology & Laboratory Medicine, 2012
Context.—The kidney is a favored site for crystal deposition because of the high concentration of ions and molecules reached at the level of the renal tubules in the course of filtration. This review focuses on crystalline nephropathies in 4 broad categories: (1) dysproteinemia- associated, (2) drug-induced, (3) calcium-containing, and (4) metabolic or
Leal C, Herlitz   +2 more
openaire   +2 more sources

Experimental Study on Rejuvenation of Aged Power Cables via Simulation Operation

open access: yesEnergies
Thermal effects play a crucial role in the evolution of insulation performance in power cables during long-term operation. Before the experiments, crosslinked polyethylene (XLPE) sheets and cables were thermally aged at 105 °C for up to 180 days.
Yue Xie   +3 more
doaj   +1 more source

The effect of switchable ionic liquid (SIL) treatment on the composition and crystallinity of birch chips (Betula pendula) using a novel alkanol amine-organic superbase-derived SIL

open access: yesGreen Processing and Synthesis, 2014
Two-step treatment of birch chips (Betula pendula) was tested using diethanolamine (DEA)-1,8-diazabicyclo-[5.4.0]-undec-7-ene (DBU)-CO2-switchable ionic liquid (SIL), resulting in a 23% weight reduction in 24 h. The weight of the chips was reduced to 32%
Anugwom Ikenna   +5 more
doaj   +1 more source

Crystalline silicates as a probe of disk formation history

open access: yes, 2006
We present a new perspective on the crystallinity of dust in protoplanetary disks. The dominant crystallization by thermal annealing happens in the very early phases of disk formation and evolution. Both the disk properties and the level of crystallinity
C. P. Dullemond   +5 more
core   +1 more source

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