Ma YQ, X Wang, SH Gao, J Zhang

Phyton-International Journal of Experimental Botany, Vol.85, pp. 79-86, 2016, DOI:10.32604/phyton.2016.85.079

Abstract The conditions for extracting polysaccharides from sweet corncobs (SCP) were studied. Four parameters (ratio of water to raw material, compound enzyme concentration, temperature of enzymolysis and duration of enzymolysis) affecting the extraction of SCP were optimized using response surface methodology (RSM). Under the optimized conditions, the yield of SCP was 17.58 %. SCP had inhibitory effects on α-amylase and α-glucosidase activities, and the IC₅₀ was 20.91 mg/mL and 12.47 mg/mL. SCP may therefore have prevention and treatment effects on postprandial hyperglycemia in diabetes. The inhibitory effects of SCP were improved after fractionation, and were strongest in More >

F. Luzi, E. Fortunati^*, D. Puglia, R. Petrucci, J.M. Kenny, L. Torre

Journal of Renewable Materials, Vol.4, No.3, pp. 190-198, 2016, DOI:10.7569/JRM.2015.634134

Abstract In this research, the revalorization of Posidonia oceanica leaf sea waste was studied and the acid hydrolysis processing times were modulated in order to optimize the extraction of cellulose nanocrystals (CNCs). The obtained CNCs were deeply investigated. A two-step treatment was applied to extract cellulose nanocrystals from Posidonia oceanica leaves. First, a chemical treatment leads to the removal of lignin and production of holocellulose, while the second chemical process of acid hydrolysis allows the obtainment of cellulose nanocrystals in aqueous suspension. The unbleached and bleached leaves and cellulose nanocrystals were characterized by using thermogravimetric analysis, More >

M.A. Pérez-Limiñana^*, M.M. Sánchez-Navarro, M.J. Escoto-Palacios, F. Arán-Aís, C. Orgilés-Barceló

Journal of Renewable Materials, Vol.4, No.1, pp. 3-8, 2016, DOI:10.7569/JRM.2015.634119

Abstract The tanning i ndustry generates very large quantities of industrial wastes. The advancement of European policy and legislation protecting the environment has prompted the transformation of tannery solid waste materials into valuable co-products, useful to be recycled or employed in other industries. The objective of this work is to obtain gelatine from tannery wastes, in order to reuse it as natural microencapsulating agent in the production of active materials with functional properties. Concretely, this paper focuses on the influence of the extraction temperature on gelatine properties and its microencapsulating ability. An alternative enzymatic pre-treatment to More >

Hameed Muhamad¹, Simant Upreti ², Ali Lohi³, Huu Doan⁴

FDMP-Fluid Dynamics & Materials Processing, Vol.12, No.3, pp. 111-123, 2016, DOI:10.3970/fdmp.2016.012.111

Abstract Heavy Oil is an up and coming energy resource that is aggressively being sought after as the world’s energy demand increases. As technology continues to improve, this once costly energy source is quickly becoming a more viable alternative. Vapor extraction (Vapex) process is an emerging technology for viscous oil recovery that has gained much attention in the oil industry. The vapor extraction of heavy oil system is presented to describe experimental setups and procedures used to perform different experiments of vape extraction process. The generated experimental data were used to calculate the live oil maximum… More >

Mario Alejandro Mejía Escobar^*, Frankin Jaramillo^*

Journal of Renewable Materials, Vol.3, No.4, pp. 281-291, 2015, DOI:10.7569/JRM.2014.634142

Abstract In recent years, the development of new materials has contributed markedly to improving the efficiency of dye-sensitized solar cells (DSSCs). Mesoporous semiconductors, solid electrolyte, non-conventional catalysts and synthetic dyes without ruthenium have been the focus of study. With respect to the last, lanthanides and porphyrins have presented good properties, but these elements have the same disadvantage as rutheniumbased dyes; being complicated to synthesize and very expensive. These limitations have stimulated much research in the use of natural dyes as sensitizers due to their exceptional photoelectochemical properties and low cost. Furthermore, they are regarded as renewable More >

López-Calderón MJ¹, U Figueroa-Viramontes^2*, M Fortis-Hernández¹, G Núñez-Hernández², E Ochoa-Martínez², JI Sanchez-Duarte²

Phyton-International Journal of Experimental Botany, Vol.84, No.1, pp. 8-13, 2015, DOI:10.32604/phyton.2015.84.008

Abstract An experiment with increasing rates of fertilizer and manure in silage corn was established to evaluate the agronomic crop response and to estimate the manure nitrogen availability. The treatments were designed to deliver 0, 67, 100 and 133% of the crop nitrogen requirements (CNR), using ammonium sulphate and manure as N source. Dry matter (DM) yield was similar among treatments receiving N, but those values were greater than those found in the control. Nitrogen extraction at harvest was not statistically different in treatments with fertilizer or manure, but it was higher in these treatments than… More >

Yi Xue^1,2, Feng Gao^1,2,3, Xingguang Liu⁴, Xiru Li²

CMC-Computers, Materials & Continua, Vol.47, No.2, pp. 127-141, 2015, DOI:10.3970/cmc.2015.047.127

Abstract In order to study the effect of high pressure water jet cutting technology on the permeability of single coal seam, we use the damage variable to describe the fracture distribution of coal seam, develop the 3-D finite element program based on the damage theory, and then analyze the damage distribution of coal seam after drilling and slotting. Using MTS815 rock mechanics testing system and the permeability test system, we conduct the permeability test and get the relationship between permeability and damage. Based on the damage distribution of coal seam after drilling and slotting and the More >

Galindo-Tovar ME, VS Gasperin-Sanatta, JA Alejandre-Rosas, OR Leyva-Ovalle, J Murguía-González, HE Lee-Espinosa, I L,ero-Torres

Phyton-International Journal of Experimental Botany, Vol.83, pp. 307-310, 2014, DOI:10.32604/phyton.2014.83.307

Abstract Sechium edule is an important crop in Southern Mexico and Central America, and México was the main producer, with 53% of the world production in 2012. This species presents high levels of morphological variation that have resulted in different types of varieties not clearly defined. However, morphological characteristics have not been sufficient to classify S. edule varieties, and it has been difficult to study the species genetic diversity. Because of it, there is a need to develop methods for studying the genetic diversity in S. edule. In this regard, the first step is to find a suitable DNA More >

Castillo González AM¹, JA Hernández Maruri¹, E Avitia García¹, J Pineda Pineda², LA Valdéz Aguilar³, T Corona Torres⁴

Phyton-International Journal of Experimental Botany, Vol.80, pp. 65-72, 2011, DOI:10.32604/phyton.2011.80.065

Abstract Musa spp. is one of the most important fruit crops in the world. Production in Mexico is ranked in the eighth place in the world. Nutrient imbalance is one of the main agronomic problems this species has to deal with. Modern fertilization programs must be designed based on nutrient demand by the cultivated plants, and according to their phenological phase. However, no information is available for ‘Dominico’, one of the most widespread cultivars in Mexico. The objectives of the present study were to evaluate dry mass and macronutrient accumulation and distribution in banana ‘Dominico’ during the… More >

Andrew C. Kramer

Canadian Journal of Urology, Vol.16, No.3, pp. 4627-4631, 2009

Abstract Objective: Requests for sperm extraction in terminally ill or recently deceased patients have been increasing with the gained acceptance and success of assisted reproductive techniques such as in vitro fertilization and intracytoplasmic sperm injection. This review aims to outline the many challenges associated with these requests.
Materials and methods: The medical literature surrounding ethical and legal issues of posthumous sperm extraction was examined.
Results: Several issues within the field of sperm extraction in the terminally ill patient and the postmortem patient still arouse a significant amount of debate and controversy. One controversial factor surrounds the issue of consent… More >