Optimal cultivation towards enhanced biomass and floridean starch production by Porphyridium marinum

2019 ◽  
Vol 129 ◽  
pp. 152-161 ◽  
Author(s):  
Hajer Ben Hlima ◽  
Mouna Dammak ◽  
Nesrine Karkouch ◽  
Faiez Hentati ◽  
Céline Laroche ◽  
...  
Keyword(s):  
Floridean Starch ◽  
Starch Production

scholarly journals Starch Production in Chlamydomonas reinhardtii through Supraoptimal Temperature in a Pilot-Scale Photobioreactor

Cells ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 1084
Author(s):  
Ivan N. Ivanov ◽  
Vilém Zachleder ◽  
Milada Vítová ◽  
Maria J. Barbosa ◽  
Kateřina Bišová
Keyword(s):  
Chlamydomonas Reinhardtii ◽  
Starch Content ◽  
Light Availability ◽  
Fold Increase ◽  
Pilot Scale ◽  
Temperature Treatment ◽  
Control Culture ◽  
Starch Accumulation ◽  
Cellular Division ◽  
Starch Production

An increase in temperature can have a profound effect on the cell cycle and cell division in green algae, whereas growth and the synthesis of energy storage compounds are less influenced. In Chlamydomonas reinhardtii, laboratory experiments have shown that exposure to a supraoptimal temperature (39 °C) causes a complete block of nuclear and cellular division accompanied by an increased accumulation of starch. In this work we explore the potential of supraoptimal temperature as a method to promote starch production in C. reinhardtii in a pilot-scale photobioreactor. The method was successfully applied and resulted in an almost 3-fold increase in the starch content of C. reinhardtii dry matter. Moreover, a maximum starch content at the supraoptimal temperature was reached within 1–2 days, compared with 5 days for the control culture at the optimal temperature (30 °C). Therefore, supraoptimal temperature treatment promotes rapid starch accumulation and suggests a viable alternative to other starch-inducing methods, such as nutrient depletion. Nevertheless, technical challenges, such as bioreactor design and light availability within the culture, still need to be dealt with.

scholarly journals Molecular mechanism underlying the effect of maleic hydrazide treatment on starch accumulation in S. polyrrhiza 7498 fronds

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Yerong Zhu ◽  
Xiaoxue Li ◽  
Xuan Gao ◽  
Jiqi Sun ◽  
Xiaoyuan Ji ◽  
...  
Keyword(s):  
Plant Growth ◽  
Carbon Fixation ◽  
Maleic Hydrazide ◽  
Starch Content ◽  
Vegetative Reproduction ◽  
Photosynthetic Pigment ◽  
Starch Accumulation ◽  
Chlorophyll Fluorescence Parameters ◽  
Significant Difference ◽  
Starch Production

Abstract Background Duckweed is considered a promising feedstock for bioethanol production due to its high biomass and starch production. The starch content can be promoted by plant growth regulators after the vegetative reproduction being inhibited. Maleic hydrazide (MH) has been reported to inhibit plant growth, meantime to increase biomass and starch content in some plants. However, the molecular explanation on the mechanism of MH action is still unclear. Results To know the effect and action mode of MH on the growth and starch accumulation in Spirodela polyrrhiza 7498, the plants were treated with different concentrations of MH. Our results showed a substantial inhibition of the growth in both fronds and roots, and increase in starch contents of plants after MH treatment. And with 75 µg/mL MH treatment and on the 8th day of the experiment, starch content was the highest, about 40 mg/g fresh weight, which is about 20-fold higher than the control. The I2-KI staining and TEM results confirmed that 75 µg/mL MH-treated fronds possessed more starch and big starch granules than that of the control. No significant difference for both in the photosynthetic pigment content and the chlorophyll fluorescence parameters of PII was found. Differentially expressed transcripts were analyzed in S. polyrrhiza 7498 after 75 µg/mL MH treatment. The results showed that the expression of some genes related to auxin response reaction was down-regulated; while, expression of some genes involved in carbon fixation, C4 pathway of photosynthesis, starch biosynthesis and ABA signal transduction pathway was up-regulated. Conclusion The results provide novel insights into the underlying mechanisms of growth inhibition and starch accumulation by MH treatment, and provide a selective way for the improvement of starch production in duckweed.

scholarly journals A novel approach for resistant starch production from green banana flour using amylopullulanase

LWT ◽  
2021 ◽  
pp. 112391
Author(s):  
Mohan Das ◽  
Nithin Rajan ◽  
Pritha Biswas ◽  
Rintu Banerjee
Keyword(s):  
Resistant Starch ◽  
Novel Approach ◽  
Banana Flour ◽  
Green Banana ◽  
Starch Production

Utilization of ramon seeds (Brosimum alicastrum swarts) as a new source material for thermoplastic starch production

2016 ◽  
Vol 133 (47) ◽  
Author(s):  
Carlos Rolando Ríos-Soberanis ◽  
Raciel Javier Estrada-León ◽  
Víctor Manuel Moo-Huchin ◽  
María José Cabrera-Sierra ◽  
José Manuel Cervantes-Uc ◽  
...  
Keyword(s):  
Thermoplastic Starch ◽  
Source Material ◽  
Brosimum Alicastrum ◽  
Starch Production

scholarly journals STARCH PRODUCTION FROM RED GINGER (Zinggiber officinale Rosc.)

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Widayat Widayat ◽  
H. Striadi ◽  
Syaiful Syaiful ◽  
Atik Kurnia ◽  
Faradilla Driastuti
Keyword(s):  
Production Process ◽  
Settling Time ◽  
Solvent Ratio ◽  
Traditional Food ◽  
Red Ginger ◽  
Starch Yield ◽  
Water Ratio ◽  
Sedimentation Time ◽  
Starch Production

Red Ginger is a natural ingredient including to spice that contain starch 40-60 % weight. Application of red ginger usually it is taken its extract or to taste of traditional food.  The purpose of this research is to know the influence of settling time, the red ginger and solvent ratio, and the temperature of the solvent in the production process of red ginger starch. We hope to get the best condition to get the highest starch yield. The process of making red ginger starch begins with peeled, then washed, shredded, filtered and precipitated. Starch ginger dried by the sun's heat. The best result was obtained at 1 hour sedimentation time with red ginger starch yield 13,3%, red ginger and water ratio 3: 5 (g / g) with yield of red ginger 15,69% and temperature of solvent at 25 ᵒC with yield of red ginger starch 11.17%.

Evaluation of the waste from cassava starch production as a substrate for ethanol fermentation by Saccharomyces cerevisiae

2010 ◽  
Vol 61 (3) ◽  
pp. 431-436 ◽  
Author(s):  
Ancharida Akaracharanya ◽  
Jutarat Kesornsit ◽  
Natchanun Leepipatpiboon ◽  
Teerapatr Srinorakutara ◽  
Vichien Kitpreechavanich ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Ethanol Fermentation ◽  
Cassava Starch ◽  
Starch Production

Comparative Study of Pilot Scale Rice Starch Production by an Alkaline and an Enzymatic Process

2005 ◽  
Vol 57 (3-4) ◽  
pp. 134-144 ◽  
Author(s):  
Hatairat Puchongkavarin ◽  
Saiyavit Varavinit ◽  
Wolfgang Bergthaller
Keyword(s):  
Comparative Study ◽  
Pilot Scale ◽  
Rice Starch ◽  
Enzymatic Process ◽  
Starch Production
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