Refine
Year of publication
- 2024 (6)
- 2023 (17)
- 2022 (20)
- 2021 (12)
- 2020 (13)
- 2019 (16)
- 2018 (22)
- 2017 (12)
- 2016 (44)
- 2015 (30)
- 2014 (46)
- 2013 (29)
- 2012 (40)
- 2011 (28)
- 2010 (34)
- 2009 (30)
- 2008 (16)
- 2007 (20)
- 2006 (17)
- 2005 (20)
- 2004 (15)
- 2003 (14)
- 2002 (19)
- 2001 (18)
- 2000 (12)
- 1999 (16)
- 1998 (31)
- 1997 (25)
- 1996 (19)
- 1995 (36)
- 1994 (29)
- 1993 (21)
- 1992 (27)
- 1991 (15)
- 1990 (20)
- 1989 (20)
- 1988 (19)
- 1987 (16)
- 1986 (11)
- 1985 (7)
- 1984 (10)
- 1983 (10)
- 1982 (3)
- 1981 (3)
- 1980 (3)
- 1979 (8)
- 1978 (2)
- 1976 (2)
- 1975 (3)
- 1973 (2)
- 1972 (2)
- 1971 (2)
Institute
- Fachbereich Chemie und Biotechnologie (912) (remove)
Language
- English (551)
- German (358)
- Multiple languages (2)
- Spanish (1)
Document Type
- Article (602)
- Patent (117)
- Book (65)
- Conference: Meeting Abstract (55)
- Conference Proceeding (35)
- Part of a Book (21)
- Report (6)
- Bachelor Thesis (3)
- Doctoral Thesis (3)
- Conference Poster (1)
Keywords
- Heparin (3)
- Bacillaceae (2)
- Biorefinery (2)
- Biotechnological application (2)
- Butanol (2)
- Chemometrics (2)
- IR spectroscopy (2)
- NMR spectroscopy (2)
- Principal component analysis (2)
- Standardization (2)
Lately there has been an increasing concern about uranium toxicity in some districts of Punjab State located in the North Western part of India after the publication of a report (Blaurock-Busch et al. 2010) which showed that the concentration of uranium in hair and urine of children suffering from physical deformities, neurological and mental disorder from Malwa region (Fig. 1) of Punjab State was manifold higher than the reference ranges. A train which connects the affected region with the nearby city of Bikaner which has a Cancer Hospital has been nicknamed as Cancer Express due to the frenzy generated on account of uranium related toxicity.
The emerging environmental issues due to the use of fossil resources are encouraging the exploration of new renewable resources. Biomasses are attracting more interest due to the low environmental impacts, low costs, and high availability on earth. In this scenario, green biorefineries are a promising platform in which green biomasses are used as feedstock. Grasses are mainly composed of cellulose and hemicellulose, and lignin is available in a small amount. In this work, a perennial ryegrass was used as feedstock to develop a green bio-refinery platform. Firstly, the grass was mechanically pretreated, thus obtaining a press juice and a press cake fraction. The press juice has high nutritional values and can be employed as part of fermentation media. The press cake can be employed as a substrate either in enzymatic hydrolysis or in solid-state fermentation. The overall aim of this work was to demonstrate different applications of both the liquid and the solid fractions. For this purpose, the filamentous fungus A. niger and the yeast Y. lipolythica were selected for their ability to produce citric acid. Finally, the possibility was assessed to use the press juice as part of fermentation media to cultivate S. cerevisiae and lactic acid bacteria for ethanol and lactic acid fermentation.
Lolium perenne (perennial ryegrass) is aproductive and high-quality forage grass indigenous to Southern Europe, temperate Asia, and North Africa. Nowadays it is widespread and the dominant grass species on green areas in temperate climates. This abundant source of biomass is suitable for the development of bioeconomic processes because of its high cellulose and water-soluble carbohydrate content. In this work, novel breeds of the perennial ryegrass are being examined with regards to their quality parameters and biotechnological utilization options within the context of bioeconomy. Three processing operations are presented. In the first process, the perennial ryegrass is pretreated by pressing or hydrothermal extraction to derive glucosevia subsequent enzymatic hydrolysis of cellulose. A yield of up to 82 % glucose was achieved when using the hydrothermal ex-traction as pretreatment. In a second process, the ryegrass is used to produce lactic acid in high concentrations. The influence of the growth conditions and the cutting time on the carboxylic acid yield is investigated. A yield of lactic acid of above 150 g kg⁻¹ dry matter was achieved. The third process is to use Lolium perenne as a substrate in the fermentation of K. marxianus for the microbial production of single-cell proteins. The perennial ryegrass is screw-pressed and the press juice is used as medium. When supplementing the press juice with yeast media components, a biomass concentration of up to 16 g L⁻¹ could be achieved.
Die Erfindung betrifft ein Verfahren zum Bestimmen einer Sitzeinstellung (23) eines Sitzes (3) eines Kraftfahrzeugs (1), bei welchem folgende Schritte durchgeführt werden:- Bereitstellen einer Körperabmessung (12) eines Nutzers (6) des Kraftfahrzeugs (1);- Bereitstellen einer Sitzeigenschaft (13) des Sitzes (3) des Kraftfahrzeugs (1);- Bereitstellen eines mit zumindest einer Referenzsitzeigenschaft (20), zumindest einer Referenzkörperabmessung (21) und zumindest einer Referenzsitzeinstellung (22) trainiertes künstliches neuronales Netz (14); und- Bestimmen der Sitzeinstellung (23) durch Eingabe der Körperabmessung (12) und der Sitzeigenschaft (13) in das künstliche neuronale Netz (14).