dc.creatorGifuni
dc.creatorImma; Olivieri
dc.creatorGiuseppe; Pollio
dc.creatorAntonino; Franco
dc.creatorTelma Teixeira; Marzocchella
dc.creatorAntonio
dc.date2017
dc.datefev
dc.date2017-11-13T13:58:11Z
dc.date2017-11-13T13:58:11Z
dc.date.accessioned2018-03-29T06:11:35Z
dc.date.available2018-03-29T06:11:35Z
dc.identifierJournal Of Applied Phycology. Springer, v. 29, p. 105 - 114, 2017.
dc.identifier0921-8971
dc.identifier1573-5176
dc.identifierWOS:000396344800010
dc.identifier10.1007/s10811-016-0932-2
dc.identifierhttps://link.springer.com/article/10.1007/s10811-016-0932-2
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/330216
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1367241
dc.descriptionMicroalgal autotrophic cultures may be used as starch feedstocks for a wide spectrum of food and non-food applications, starch-based plastics production included. Chlamydomonas is known to accumulate carbohydrates, but only Chlamydomonas reinhardtii is widely studied. This is the first paper that analyzes the starch content and production rate of four non-conventional Chlamydomonas species and compares their performances to the benchmark C. reinhardtii. Two culture systems-shaken flasks and inclined bubble column (IBC) photobioreactors-and nitrogen depletion conditions were characterized. The irradiance was set at 95 mu mol photons m(-2) s(-1) for flask system and at 220 mu mol photons m(-2) s(-1) for photobioreactors. CO2 and light depletion in shaken flasks strongly affected growth rate and starch production. Under these limiting condition, Chlamydomonas applanata had the best starch productivity of 1.2 mg L-1 day(-1). In IBC photobioreactors, the microalgal growth rate and starch production improved with respect to the flask system and nitrogen depletion promoted starch accumulation. The best results of starch productivity and maximum starch fraction were 53 mg L-1 day(-1) and 45%(DW) for Chlamydomonas oblonga and Chlamydomonas moewusii, respectively. This was 49 % more than the studied benchmark. A fast and simple method for starch localization in the microalgal cells was also proposed. The starch granules surrounded the pyrenoid under the growth phase, while they fill the whole cell under nutrient depletion.
dc.description29
dc.description1
dc.description105
dc.description114
dc.descriptionRegione Campania (Italy) [CUPB25C13000290007]
dc.languageEnglish
dc.publisherSpringer
dc.publisherDordrecht
dc.relationJournal of Applied Phycology
dc.rightsfechado
dc.sourceWOS
dc.subjectBioplastics
dc.subjectChlamydomonas
dc.subjectCulture Systems
dc.subjectMicroalgae
dc.subjectStarch
dc.titleAutotrophic Starch Production By Chlamydomonas Species
dc.typeArtículos de revistas


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