Improvement of fumigaclavine C production in a two-stage culture of Aspergillus fumigatus with molasses as a cost-effective ingredient

2015 ◽  
Vol 20 (6) ◽  
pp. 1106-1113 ◽  
Author(s):  
Yi-Xiang Zhu ◽  
Wei-Wei Hu ◽  
Ling-Yun Yao ◽  
Wan-Guo Yu ◽  
Rui-Hua Jiao ◽  
...  
Keyword(s):  
Aspergillus Fumigatus ◽  
Cost Effective ◽  
Two Stage ◽  
Two Stage Culture

Enhanced production of fumigaclavine C by ultrasound stimulation in a two-stage culture of Aspergillus fumigatus CY018

2014 ◽  
Vol 159 ◽  
pp. 112-117 ◽  
Author(s):  
Ling-Yun Yao ◽  
Yi-Xiang Zhu ◽  
Rui-Hua Jiao ◽  
Yan-Hua Lu ◽  
Ren-Xiang Tan
Keyword(s):  
Aspergillus Fumigatus ◽  
Two Stage ◽  
Ultrasound Stimulation ◽  
Enhanced Production ◽  
Two Stage Culture

Two-stage chemical-biological treatment at Thessaloniki greater area WWTP - experiences and potentials

1995 ◽  
Vol 32 (9-10) ◽  
pp. 75-84 ◽  
Author(s):  
A. D. Andreadakis ◽  
G. H. Kristensen ◽  
A. Papadopoulos ◽  
C. Oikonomopoulos
Keyword(s):  
Biological Treatment ◽  
Treatment Plant ◽  
Cost Effective ◽  
Primary Treatment ◽  
Effective Control ◽  
Two Stage ◽  
Effluent Quality ◽  
Filamentous Microorganisms ◽  
Sludge Settling ◽  
The City

The wastewater from the city of Thessaloniki is discharged without treatment to the nearby inner part of the Thessaloniki Gulf. The existing, since 1989, treatment plant offers only primary treatment and did not operate since the expected effluent quality is not suitable for safe disposal to the available recipients. Upgrading of the plant for advanced biological treatment, including seasonal nitrogen removal, is due from 1995. In the mean time, after minor modifications completed in February 1992, the existing plant was put into operation as a two-stage chemical-biological treatment plant for 40 000 m3 d−1, which corresponds to about 35% of the total sewage flow. The operational results obtained during the two years operation period are presented and evaluated. All sewage and sludge treatment units of the plant perform better than expected, with the exception of the poor sludge settling characteristics, due to severe and persistent bulking caused by excessive growth of filamentous microorganisms, particularly M. Parvicella. Effective control of the bulking problem could lead to more cost-effective operation and increased influent flows.

scholarly journals A two-stage amplified PZT sensor for monitoring lung and heart sounds in discharged pneumonia patients

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Hongbin Chen ◽  
Shuai Yu ◽  
Haiyang Liu ◽  
Jie Liu ◽  
Yongguang Xiao ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Cost Effective ◽  
High Ratio ◽  
Heart Sounds ◽  
Two Stage ◽  
Diagnosis And Prognosis ◽  
Sensor Device ◽  
Cost Effective Alternative ◽  
A Charge ◽  
Highly Sensitive Detection

AbstractAssessment of lung and heart states is of critical importance for patients with pneumonia. In this study, we present a small-sized and ultrasensitive accelerometer for continuous monitoring of lung and heart sounds to evaluate the lung and heart states of patients. Based on two-stage amplification, which consists of an asymmetric gapped cantilever and a charge amplifier, our accelerometer exhibited an extremely high ratio of sensitivity to noise compared with conventional structures. Our sensor achieves a high sensitivity of 9.2 V/g at frequencies less than 1000 Hz, making it suitable to use to monitor weak physiological signals, including heart and lung sounds. For the first time, lung injury, heart injury, and both lung and heart injuries in discharged pneumonia patients were revealed by our sensor device. Our sound sensor also successfully tracked the recovery course of the discharged pneumonia patients. Over time, the lung and heart states of the patients gradually improved after discharge. Our observations were in good agreement with clinical reports. Compared with conventional medical instruments, our sensor device provides rapid and highly sensitive detection of lung and heart sounds, which greatly helps in the evaluation of lung and heart states of pneumonia patients. This sensor provides a cost-effective alternative approach to the diagnosis and prognosis of pneumonia and has the potential for clinical and home-use health monitoring.

Hybrid two-stage culture of Halamphora coffeaeformis for biodiesel production: Growth phases, nutritional stages and biorefinery approach

2018 ◽  
Vol 118 ◽  
pp. 984-992 ◽  
Author(s):  
Lucas A. Martín ◽  
Cecilia A. Popovich ◽  
Ana M. Martínez ◽  
Paola G. Scodelaro Bilbao ◽  
María C. Damiani ◽  
...  
Keyword(s):  
Biodiesel Production ◽  
Growth Phases ◽  
Two Stage ◽  
Production Growth ◽  
Two Stage Culture

Development of a two-stage flexible fibre biofilm reactor for treatment of food processing wastewater

2003 ◽  
Vol 47 (11) ◽  
pp. 189-194 ◽  
Author(s):  
Q.J. Yu ◽  
H. Xu ◽  
D. Yao ◽  
P. Williams
Keyword(s):  
Removal Efficiency ◽  
Food Processing ◽  
Cost Effective ◽  
Biofilm Reactor ◽  
Cod Removal ◽  
Two Stage ◽  
Cod Removal Efficiency ◽  
Cost Effective Treatment ◽  
Removal Efficiencies ◽  
Food Processing Wastewater

Biofilm (or attached growth) reactors can be effectively used to treat organic wastewater from various industries such as food processing industry. They have a number of advantages including high organic loading rates (OLRs) and improved operational stability. A flexible fibre biofim reactor (FFBR) has been developed for efficient and cost effective treatment of food processing wastewater. In the process, simple flexible fibre packing with a very high specific surface area is used as support for microorganisms. The COD removal efficiencies for a range of OLRs have been studied. The FFBR can support an increasingly high OLR, but with a corresponding decrease in the COD removal efficiency. Therefore, a two-stage FFBR was developed to increase the treatment efficiency for systems with high OLRs. Experimental results indicated that a high overall COD removal efficiency could be achieved. At an influent COD of about 2700 mg/L and an OLR of 7.7 kgCOD/m3d, COD removal efficiencies of 76% and 82% were achieved in the first and the second stage of the reactor, respectively. The overall COD removal efficiency was 96%. Therefore, even for wastewater samples with high organic strength, high quality treated effluents could be readily achieved by the use of multiple stage FFBRs.

CONTINUOUS TWO-STAGE CULTURE OF STREPTOCOCCI

1964 ◽  
pp. 167-172
Author(s):  
B. HOLMSTRÖM ◽  
J.K. ROSE
Keyword(s):  
Two Stage ◽  
Two Stage Culture

Secondary Carotenogenesis of the Green Microalga Bracteacoccus minor (Chodat) Petrova (Chlorophyta) in a Two-Stage Culture

2014 ◽  
Vol 16 (4) ◽  
pp. 354-368 ◽  
Author(s):  
G. S. Minyuk ◽  
E.S. Chelebieva ◽  
I. N. Chubchikova
Keyword(s):  
Two Stage ◽  
Green Microalga ◽  
Two Stage Culture

Enhanced production of Fumigaclavine C in liquid culture of Aspergillus fumigatus under a two-stage process

2014 ◽  
Vol 152 ◽  
pp. 162-168 ◽  
Author(s):  
Yi-Xiang Zhu ◽  
Ling-Yun Yao ◽  
Rui-Hua Jiao ◽  
Yan-Hua Lu ◽  
Ren-Xiang Tan
Keyword(s):  
Aspergillus Fumigatus ◽  
Liquid Culture ◽  
Two Stage ◽  
Enhanced Production ◽  
Stage Process
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