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Methods Mol Biol. The maximum product yield of Limonene, a major favorable component, were 77% and 100% in hydro-distillation and steam explosion processes, respectively. Published by Elsevier Ltd. Influence of different amounts of 2-naphthol on the enzymatic cellulose digestibility of washed pretreated spruce wood at different enzyme loadings. The maximum laccase activity reached 3.5 IU/mL, six times those in the other two fermenters. SteamID3 [U:1:22202] We use cookies to help provide and enhance our service and tailor content and ads. Liu S, Lu H, Hu R, Shupe A, Lin L, Liang B. Biotechnol Adv. In this way, raw hemp is processed without any additional chemical reagents to obtain five products, also with no waste emissions. Kraft pulp is responsible for about 75% of the global cellulosic pulp market. SteamID64 76561197960287930 Trends in biotechnological production of fuel ethanol from different feedstocks. endstream endobj startxref Biomass is the mediator of carbon transfer. In general, alkaline treatment, together with hydrogen peroxide, have been the preferred methods for the isolation of cellulose from sugarcane bagasse aiming at the production of nanocellulose. Polygeneration of biomass biochemical conversion utilizes resource generally with characteristics of low extraction, high utilization, and low pollutant emission, meaning the results are cleaner products. 1994) Two important factors that govern the effect of steam explosions are temperature and residence time. The concentration of residual 2-naphthol tolerated by the yeast decreased with increasing concentrations of HMF, furfural, and acetic acid. The advanced version takes the same inputs as the basic version. However, literatures reported that P. chrysosporium can produce a small amount of lignin peroxidase and laccase under severely controlled concentration of nitrogen. It can be performed in the absence or presence of an exogenous acid catalyst added to the plant biomass. %PDF-1.6 %���� In this work, a new extraction process using steam explosion at high temperature and pressure was developed, to drastically shorten the extraction time and improved extraction of the essential oil from citrus peels. Epub 2018 Nov 15. (? p-Coumaric acid and guaiacol can improve laccase production of white-rot fungus Trametes sp. NIH The whole process of biomass utilization does not increase additional carbon dioxide content. In the former, most of the lignin is chemically solubilized, and part of the hemicelluloses are dissolved, generating a pulp with about 65%–80% cellulose. Research and practice show that solid-state fermentation of white-rot fungi can get higher laccase production compared to the liquid fermentation. Hemp and its products have very unique advantages and the comprehensive utilization of hemp has achieved a breakthrough using advanced technologies in which hemp is processed by steam explosion and then used for textiles, resulting in high-valued by-products and in line with the circular economy. Hemp cultivation formed its peak at the beginning of the 1980s, the total cultivated area was 150,000 ha., and has been stable at 170,000–180,000 ha. These Basidiomycetes mainly belong to wood decay fungi, including Corticiaceae, Stereaceae, Hericiaceae, Ganodermataceae, Hymenochaetaceae, Polyporaceae, Strophariaceae, Tricholomataceae, and so on. Lignocellulosic biomass is considered as a potential source for sustainable biofuels. U.S. Energy Information Administration. Science. In contrast to present production methods (mainly enzymatic production) of xylan, this method has several advantages such as a simple production process, no pollution, low production and materials cost, and high product yield. Based on the similarities and differences between straw and wood in terms of chemical composition and structure, Prof. Chen has proposed a new concept of modified straw and has developed new technology using modified fibers to produce ecofriendly materials (Chen and Li, 2001). However, the treatment effect is not uniform (Zhang and Cai, 2006; Zhang et al., 2006a). Hemp is traditionally used for making ropes, sacks, and linen. Cellulosic feedstocks, especially grasses, have been partially degraded after steam explosion treatment and the degradation products can replace expensive resveratrol as lignin gene expression inducer. Compared to hardwood and softwood fibers, the most common and industrially relevant sources of cellulose, cellulosic fibers from sugarcane, are smaller than softwood fibers and similar in size to hardwood fibers (Table 9.1). Steam explosion treatments were used to modify straw fiber attributes for panel manufacturing. Nitrogen adsorption is a classic method for surface area determination based on the Brunauer–Emmett–Teller (BET) theory [46]. Mass transfer system laid great impact on laccase yield. Hongzhang Chen, Lan Wang, in Technologies for Biochemical Conversion of Biomass, 2017. The radial and tangential gas permeability of A. lasiocarpa was improved after steam explosion treatment and increased with the increase of the blasting pressure, temperature and cycle index. Fig. In this process, the addition of sizing material accounts for a large proportion of total production costs (60%), making it difficult to compete with plastics and other decorative materials in terms of technical and economic factors, and it can easily pollute the environment. Copyright © 2020 Elsevier B.V. or its licensors or contributors. In this research, five different residence times were chosen to treat kenaf at 1 MPa STEX pressure. Steam is first injected into a well for a certain amount of time to heat the oil in the surrounding reservoir to a recover approximately 20% of the original oil in place (OOIP), compared to steam assisted gravity drainage, which has been reported to recover over 50% of OOIP. Process for producing soft and fine jute fibres from raw jute involving steam explosion method In particular, the process involves pre-treatment of the raw jute in a alkaline media followed by subjecting the thus pre-treated raw jute to steam treatment in a pressure vessel and finally releasing the pressure in the vessel to atmospheric pressure to cause explosion of the jute to fine fibres.

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