Effect of high frequency of intermittent light on the growth and fatty acid profile of Isochrysis galbana

Yoshioka, Miwa; Yago, T.; Yoshie-Stark, Yumiko; Arakawa, Hisayuki; Morinaga, Tsutomu

doi:10.1016/j.aquaculture.2012.01.005

Cited by 72 publications

(43 citation statements)

References 20 publications

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“…Other groups have reported nutrient removal rates in I. galbana cells on day 4 of 9 % to PO 4 and 67 % to NO 3 when used f/2 medium, as described by Guillard (1975) (ValenzuelaEspinoza et al 1999). However, the cell density of T. lutea was higher with intermittent blue light and lower in white and red light cultures maintained with low irradiance (20 μmol photons m −2 s −1 ) and f/2 medium (Yoshioka et al 2012). …”

Section: Discussionmentioning

confidence: 98%

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Effect of different light spectra on the growth and biochemical composition of Tisochrysis lutea

2015

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We determined the effects of various light spectra (white, green, blue, and red) on the growth rate, biochemical composition, and fatty acid content of Tisochrysis lutea (Haptophyta, Isochrysidales) maintained in batch cultures. The growth rate peaked with white and blue light, and the lowest rate was observed with green and red light. The chlorophyll a content differed significantly between light spectra and growth phases-higher values were recorded with blue and red light in both growth phases. The proximal composition varied significantly with growth phases and light spectrum. In the exponential growth phase, protein content was significantly greater with blue light and in the stationary phase with green light. The level of carbohydrates in the exponential growth phase was significantly higher for white light, but unchanged in the stationary growth phase between light spectra. The lipid percentages were similar in the exponential phase but differed significantly in the stationary growth phase. The lipid percentages peaked in the stationary growth phase with red and green light. The highest eicosapentaenoic acid (EPA) levels were seen in white light in the exponential growth phase and under green light in the stationary growth phase. Docosahexaenoic acid (DHA) levels were greatest in the exponential growth phase with red light and in the stationary growth phase with green light. Blue light increased the DHA content in both growth phases. We conclude that T. lutea alters its metabolic pathways and experience shifts in growth rate, proximate composition, and fatty acid content, depending on the type of light used.

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Section: Discussionmentioning

confidence: 98%

“…In contrast, another study reported that the cell density of Isochrysis aff. galbana under intermittent blue-light LED was greater than with continuous blue light (Yoshioka et al 2012). In Isochrysis sp.…”

Section: Discussionmentioning

confidence: 98%

Effect of different light spectra on the growth and biochemical composition of Tisochrysis lutea

2015

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“…There are many reports that the cell numbers of unicellular phytoplankton under intermittent light of various frequencies (10 Hz to 50 kHz) are greater than those under continuous light (Grobbelaar et al, 1996;Park and Lee, 2000;Janssen et al, 2001;Yoshioka et al, 2012;Yago et al, 2012). Furthermore, the same phenomenon has been reported in land plants.…”

Section: Effects Of Intermittent Light On Seaweed Growthmentioning

confidence: 99%

Effects of light conditions on the growth of commercial seaweed Undaria pinnatifida

Yago¹,

Arakawa²,

Saori³

et al. 2017

Afr. J. Plant Sci.

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The artificial lighting conditions which promoted growth of the gametophytes and sporophytes of brown alga Undaria pinnatifida were examined. The seaweed was subjected to continuous or intermittent white, blue, or red light. There were notable, but not significant, differences in gametophyte and sporophyte growth between continuous and intermittent (10 4 Hz) white light conditions. Gametophyte growth was promoted most notably by white, followed by blue light. Sporophyte growth length was promoted most notably under intermittent white light, while body length and blade area were promoted notably under continuous white light. Sporophytes under blue or red light withered considerably. The results showed that white light is more beneficial for growth of both U. pinnatifida gametophytes and sporophytes compared with blue or red light. Male and female gametophyte grew more robustly under white light regardless of whether the pattern was intermittent or continuous light. However, the results further indicated that overall continuous white light promoted growth to a greater degree than did intermittent white light. Finally, white light promoted U. pinnatifida sporophyte growth to a greater degree than blue or red light.

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“…대량 배양하는데 있어 소요되는 비용은 상당히 높은 편 이다 (Coutteau and Sorgeloos, 1993) 18:2n-6, 18:3n-3, 20:2, 18:3n-6, 20:3n-6, 20:4n-6, 20:5n-3, 22:2, 22:6n-6 한편, 실험구에 따른 아미노산 함량 변화를 (Das et al, 2011;Yoshioka et al, 2012;Saha et al, 2013).…”

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“…이러한 맥락에서 본 연구를 수행한 결과, SFA 및 EPA와 같은 지방산의 함량 변화는 각기 다른 광원에 따라 변화가 있는 것으로 나타나 다른 연구자료에 의한 것처럼 빛 파장에 따른 영향을 확인할 수 있었다 (Das et al, 2011;Yoshioka et al, 2012;Saha et al, 2013). …”

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Changes in the growth and biochemical composition of Chaetoceros calcitrans cultures using light-emitting diodes

H¹,

Bae²,

Kwon³

et al. 2014

Journal of the Korean society of Fisheries Technology

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The marine microalgae Chaetoceros calcitrans was cultured under a fluorescent lamp (CON) and light-emitting diodes (LEDs) of various wavelengths (blue, LB; red, LR; green, LG; white, LW); changes in growth, fucoxanthin, chlorophyll-a, amino acid and fatty acid profiles were investigated. LR-exposed cultures exhibited the highest specific growth rate (SGR) (0.34), whereas LG-exposed cultures showed the lowest SGR (0.26). After cultivation for 10 days, the maximum dry cell weight (g/L) of LR-exposed cultures was significantly higher than that of those exposed to other light conditions (LR≧ CON>LB≧LW≧LG). Eicosapentaenoic acid (EPA) levels were significantly higher in CON-exposed cultures compared to those exposed to LW (P<0.05), with no marked difference compared to those exposed to LB, LR and LG (P>0.05). The fucoxanthin content was highest in LB-exposed cultures (6.3㎍/mL), whereas LW showed the lowest (3.6㎍/mL; P<0.05).Chlorophyll-a content was highest in cultures exposed to LB compared to other light sources. These results suggest consistent differences in growth and biochemical composition after exposure to light of different wavelengths.

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Effect of high frequency of intermittent light on the growth and fatty acid profile of Isochrysis galbana

Cited by 72 publications

References 20 publications

Effect of different light spectra on the growth and biochemical composition of Tisochrysis lutea

Effect of different light spectra on the growth and biochemical composition of Tisochrysis lutea

Effects of light conditions on the growth of commercial seaweed Undaria pinnatifida

Changes in the growth and biochemical composition of Chaetoceros calcitrans cultures using light-emitting diodes

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