Conditions used with a continuous cultivation system to screen for d-hydantoinase-producing microorganisms

1995 ◽  
Vol 43 (2) ◽  
pp. 259-266 ◽  
Author(s):  
A. Morin ◽  
N. H. Tran Trung ◽  
G. LaPointe ◽  
H. Dubeau
Keyword(s):  
Continuous Cultivation ◽  
Cultivation System

Conditions used with a continuous cultivation system to screen for d-hydantoinase-producing microorganisms

1995 ◽  
Vol 43 (2) ◽  
pp. 259-266
Author(s):  
A. Morin ◽  
N. H. Tran Trung ◽  
G. LaPointe ◽  
H. Dubeau
Keyword(s):  
Continuous Cultivation ◽  
Cultivation System

scholarly journals CO2 Utilization Strategy for Sustainable Cultivation of Mushrooms and Lettuces

2021 ◽  
Vol 13 (10) ◽  
pp. 5434
Author(s):  
Dae-Ho Jung ◽  
Jung-Eek Son
Keyword(s):  
Co2 Emissions ◽  
Continuous System ◽  
Continuous Cultivation ◽  
Dry Weight ◽  
Co2 Concentration ◽  
Cultivation System ◽  
Shoot Dry Weight ◽  
Mixing Chamber ◽  
Mixed Cultivation ◽  
Sustainable Cultivation

Mushroom cultivation generates a large amount of CO2 that can be used sustainably. The objective of this study was to use actual cultivation and simulation to find a sustainable cultivation method that uses the CO2 generated by king oyster mushrooms for the production of romaine lettuces. A closed cultivation system consisting of one mushroom chamber, three lettuce chambers, and one gas-mixing chamber was used. Two cultivation conditions, non-continuous and continuous, were analyzed. The non-continuous system cultivated 15 lettuces and 12 mushroom bottles at a time every 25 and 16 days, respectively. The continuous system cultivated three lettuces and mushroom bottles every five and four days, respectively, so that each chamber contained mushrooms or lettuces at each growth stage. The CO2 concentrations in the lettuce and mushroom chambers were stably maintained above 1000 μmol∙mol−1 and below 2000 μmol∙mol−1 in the continuous system. Mathematical models were developed to analyze the CO2 concentration in each chamber. The shoot dry weight of lettuces grown in the mixed cultivation were 48.0%, 21.9%, 19.7%, and 18.1% at 10, 15, 20, and 25 days after transplanting, respectively, higher than those in the lettuce-only cultivation. Compared to mushroom-only cultivation, mixed cultivation reduced the accumulated CO2 emissions into the air by 80.6%. Thus, using CO2 from mushrooms to cultivate lettuce in a continuous cultivation system could reduce CO2 emissions into the air and enable mixed cultivation of mushrooms and lettuces, achieving sustainable agriculture.

scholarly journals Comparison of Two Harvesting Methods for the Continuous Production of Indigo Plant (Polygonum Tinctorium) Leaves in a Closed-Cultivation System

2017 ◽  
Vol 6 (2) ◽  
pp. 7
Author(s):  
Masaru Sakamoto ◽  
Dong-An Kim ◽  
Keiko Imoto ◽  
Yusuke Kitai ◽  
Takahiro Suzuki
Keyword(s):  
Continuous Production ◽  
Continuous Cultivation ◽  
Total Weight ◽  
Blue Dye ◽  
Cultivation System ◽  
Cultivation Method ◽  
Shoot Ratio ◽  
Leaf Yield ◽  
Polygonum Tinctorium ◽  
Closed Cultivation System

Although the blue dye indigo has been chemically synthesized for over a century, there is an increasing interest in the indigo plant (Polygonum tinctorium) as a source of natural dyes and medicines. To maintain a stable supply of P. tinctorium throughout the year, we examined the effect of two harvesting methods on the leaf yield of this plant under a closed-cultivation system. With method 8c-M, all shoot branches >8 cm of the stem bottom were harvested and under method 2b-M, all branches, but two, were harvested at the stem bottom. Both methods enabled sustainable leaf yields from the same plants over 1 year. The total weight of shoot branches harvested by 8c-M was 1.86–3.11 times higher that of shoot branches harvested by 2b-M. Harvesting by 8c-M resulted in shoot branch weights lower than those from plants harvested with the 2b-M. Leaf/shoot ratio was increased in plants harvested by 8c-M. The content of indican, the precursor of indigo, in leaves was not significantly different between the two harvesting methods. Our data may provide a new continuous cultivation method of leaf crops all over years in controlled-cultivation systems.

Enrichment as a screening method for a high-growth-rate microalgal strain under continuous cultivation system

2016 ◽  
Vol 21 (2) ◽  
pp. 268-273 ◽  
Author(s):  
Won-Sub Shin ◽  
Hansol Lee ◽  
Min-Gyu Sung ◽  
Kwon-Tack Hwang ◽  
Simon MoonGeun Jung ◽  
...  
Keyword(s):  
Growth Rate ◽  
Screening Method ◽  
High Growth ◽  
Continuous Cultivation ◽  
High Growth Rate ◽  
Cultivation System
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