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result(s) for
"Hutasoit, J P"
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Processing technology of sticks prepared from chayote (Sechium edule) paste and modified cassava flour (Mocaf)
2024
Sticks are a type of snack food that is commonly made from wheat flour. However, there are ongoing efforts to reduce the reliance on wheat flour in such products. In this context, the use of mocaf as a substitute for wheat flour and the addition of chayote to the processing of sticks can significantly impact the properties of the final product. The objective of this study was to examine the effects of chayote and mocaf on the physical, chemical, and sensory attributes of sticks. The research used a factorial randomized block design with treatment; C: chayote (5%, 10%, 15% and 20%) and F:wheat flour: mocaf ratio (1:1; 1:2; 1:3) for three replicates. The results showed that the addition of chayote and mocaf affected the characteristics of the sticks produced. The most preferred treatment by the panelists was C3F1 with values for water content, ash, fat, protein, carbohydrate, a-value, b-value, L-value, and yield of 5.31; 1.85; 29.75; 7.33; 55.76; 3.67; 60.00; 79.67 and 98.94, respectively. Increasing the amount of chayote makes the stick dough more difficult to shape. The more the addition of mocaf makes the texture of the stick more crumbly and easily crushable; the more the aroma and distinctive taste of mocaf become stronger; so the stick was less preferred.
Journal Article
The effect of transglutaminase on gluten-free soy bread baked using ohmic heating
2021
This study aims to compare the quality of gluten-free bread made from black soybean flour using and without transglutaminase (TGase) baked using ohmic heating technology. Parameters of bread quality observed were specific volume, moisture content, texture profile analysis, porosity, and color. To understand the changes in the ohmic heating process parameters during baking, an evaluation of temperature, electrical conductivity, current intensity, electrical power parameters was carried out. To analyze the data, the independent sample t-test method was used. The results obtained indicate that the addition of TGase affects the characteristics of the bread and process parameters during baking with ohmic heating. Bread with the addition of TGase has an increase in volume, texture, moisture content, and porosity of the bread that is better than without the addition of TGase. Based on the parameter process, the rate of increase in temperature, electrical conductivity, current, and power intensity is highly affected by the addition TGase. Electrical conductivity increases linearly with increasing temperature.
Journal Article
Scattering theory of the chiral magnetic effect in a Weyl semimetal: interplay of bulk Weyl cones and surface Fermi arcs
by
Baireuther, P
,
Beenakker, C W J
,
Hutasoit, J A
in
Chemical potential
,
chiral magnetic effect
,
Chirality
2016
We formulate a linear response theory of the chiral magnetic effect in a finite Weyl semimetal, expressing the electrical current density j induced by a slowly oscillating magnetic field B or chiral chemical potential in terms of the scattering matrix of Weyl fermions at the Fermi level. Surface conduction can be neglected in the infinite-system limit for δ j / δ , but not for δ j / δ B : the chirally circulating surface Fermi arcs give a comparable contribution to the bulk Weyl cones no matter how large the system is, because their smaller number is compensated by an increased flux sensitivity. The Fermi arc contribution to − 1 δ j / δ B has the universal value ( e / h ) 2 , protected by chirality against impurity scattering-unlike the bulk contribution of opposite sign.
Journal Article
The effect of gamma ray iradiation on the growth, production and quality of Indigofera zollingeriana to support the development of forage crops
2022
Indigofera zollingeriana plant has high production and quality as ruminant feed. Its development is constrained by the availability of land. The alternative is to expand the agricultural area towards marginal lands. This study aims to evaluate the genetic diversity of Indigofera plants through gamma ray irradiation. Indigofera seeds were irradiated at doses: 0, 100, 200, 300, 400, 500, 600, 700, 800, 900, and 1000 grays. Based on the LD 50 test, plants with radiation doses of 0 Gy, 100 Gy, 200 Gy, and 300 Gy are the best. The study was continued with a field growth test, in a randomized block design, four radiation dose treatments with 20 replications (plants). The parameters observed were plant growth characteristics, dry matter production and chemical composition. The results showed that the 300 Gy dose was higher and significantly different from other treatments in the parameters of plant height (268 cm), canopy width (195.5 cm) and fiber content (14.81%). The 0 Gy treatment was superior on the number of leaves (2,972), number of flowers 311, and calcium content of 1.76%. It was concluded that the dose of 0 and 300 Gy had advantages on the growth and production of Indigofera plants.
Journal Article
Scattering theory of the chiral magnetic effect in a Weyl semimetal: Interplay of bulk Weyl cones and surface Fermi arcs
2016
We formulate a linear response theory of the chiral magnetic effect in a finite Weyl semimetal, expressing the electrical current density \\(j\\) induced by a slowly oscillating magnetic field \\(B\\) or chiral chemical potential \\(\\mu\\) in terms of the scattering matrix of Weyl fermions at the Fermi level. Surface conduction can be neglected in the infinite-system limit for \\(\\delta j/\\delta \\mu\\), but not for \\(\\delta j/\\delta B\\): The chirally circulating surface Fermi arcs give a comparable contribution to the bulk Weyl cones no matter how large the system is, because their smaller number is compensated by an increased flux sensitivity. The Fermi arc contribution to \\(\\mu^{-1}\\delta j/\\delta B\\) has the universal value \\((e/h)^2\\), protected by chirality against impurity scattering --- unlike the bulk contribution of opposite sign.