Search Result of "Wongsnansilp, T"

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ฮฒ-carotene production of UV-C induced dunaliella salina under salt stress

ผู้แต่ง:ImgWongsnansilp, T., ImgYokthongwattana, K., ImgRoytrakul, S., ImgDr.Niran Juntawong, Associate Professor,




ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Factors Affecting Growth and ?-carotene Content of Chlorosarcinopsis sp. (PSU/CHL20) in Batch Culture)

ผู้เขียน:ImgTassnapa Wongsnansilp, ImgPimpan Tansakul, ImgManop Arunyanart



The effect of light intensity, potassium nitrate concentrations and temperature on the growth and ?-carotene content of Chlorosarcinopsis sp. (PSU/CHL20) were determined. In the first experiment, algal cells were grown on a shaker in Erlenmeyer flasks containing 150 ml of NSIII medium and at a shaking speed of 150 rpm. Potassium nitrate concentrations were 0, 0.1 and 0.2 g l-1. Light intensities used were 60, 120 and 180 ?molm-2s-1. The light / dark cycle was 16:8 h and the temperature was controlled at 25?C. The optimum light intensity and potassium nitrate concentration for algal growth and ?-carotene content was 120 ?molm-2s-1 and 0.1 g l-1 which produced a maximum cell number of 138?105 cell ml -1and a ?-carotene content of 0.133 mg l-1, (0.012 pg cell-1) respectively. In the second experiment, the effect of temperature on the growth and ?-carotene content was investigated. In this experiment the light intensity was 120 mmolm-2s-1 and the potassium nitrate concentration was 0.1g l-1, at temperatures of 25?C, 30?C and 35?C. Although statistically insignificant (P>0.05), the algal growth increased slightly with increasing temperature. The highest cell numbers of 148x105 cell ml-1 were obtained at 30?C on day 14 of cultivation. The maximum ?-carotene content of 0.543 mg l-1 (0.052 pg cell-1) was achieved at 30?C and this was significantly higher than that of the culture grown at 25?C (P<0.05).

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 041, Issue 1, Jan 00 - Mar 07, Page 153 - 157 |  PDF |  Page 



ดร. นิรันดร์ จันทวงศ์, รองศาสตราจารย์

ที่ทำงาน:ภาควิชาพฤกษศาสตร์ คณะวิทยาศาสตร์ บางเขน

สาขาที่สนใจ:ชีววิทยาพืช, ชีววิทยาโมเลกุลพืช