مهندسی شیمی ایران

مهندسی شیمی ایران

تغییر محتوای رنگدانه‌ها و رنگ ظاهری پودر اسپیرولیناپلاتنسیستحت تابش امواج نور مرئی

نوع مقاله : مقاله پژوهشی

نویسندگان
1 دانشیار مهندسی شیمی، دانشگاه بجنورد
2 کارشناس ارشد مهندسی شیمی، دانشگاه صنعتی امیرکبیر
3 استادیار شیمی آلی، دانشگاه بجنورد
4 دانشجوی کارشناسی ارشد مهندسی شیمی، دانشگاه بجنورد
چکیده
پودر ریزجلبک اسپیرولینا (اسپیرولینای برداشت‌شده از محیط کشت که خشک و پودر شده‌است) می­تواند همانند اسپیرولینا در دورۀ قبلاز برداشت (دورۀ رشد) ازنوع طیف نور تأثیر­پذیرد. در این مطالعه میزان فیکوسیانین، کلروفیل و کارتنوئیدها در پودر ریزجلبک اسپیرولیناپلاتنسیس در مجاورت نور با طول موج‌های مختلف ارزیابی‌شد. نتایج نشانداد که بیشترین محتوای فیکوسیانین مربوطبه نمونۀ تحت نور LED سرخ و کمترین آن مربوطبه تحت نور  LED آبی بودهاست. نمونۀ تحت نور LED آبی از لحاظ ظاهری، آبی­تر به‌نظر می­رسید و میزان خلوص فیکوسیانین برای این نمونه بیشترین مقدار بوده‌است. محتوای کلروفیل a و کارتنوئیدها در تمامی نمونه­ها درطول دورۀ آزمایش نسبت‌به نمونۀ شاهد کاهش‌یافته‌است که این مطلب نشاندهندۀ تخریب کلروفیل و کارتنوئیدها تحت تابش طیفهای مختلف نوری بوده‌است.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Changes in the Pigments Content and Apparent Color of Spirulina Platensis Powder Under Radiation of Visible Light Wavelengths

نویسندگان English

H. Delavari Amrei 1
N. Nemani 2
B. B. F. Azarkar 3
M. Yazdani 4
1 Associate Professor of Chemical Engineering, University of Bojnord
2 MSc. in Chemical Engineering, Amirkabir University of Technology
3 Assistant Professor of Organic Chemistry, University of Bojnord
4 MSc. Student of Chemical Engineering, University of Bojnord
چکیده English

Spirulina microalgae powder (Spirulina harvested from the culture medium that has been dried and powdered) can be affected by the type of light spectrum, just like Spirulina, during the pre-harvest period (growth period). In this study, the content of phycocyanin and chlorophyll in Spirulina platensis powder was evaluated under radiation of different light spectra. The results showed that the highest phycocyanin content was related to the sample under red LED light and the lowest was related to the sample under blue LED light. But the sample under blue light looked bluer in appearance and the purity of phycocyanin was the highest for this sample. The chlorophyll-a and total cartenoids content in all samples decreased during the test period compared to the control sample, which indicates the destruction of chlorophyll under the radiation of different light spectra.

کلیدواژه‌ها English

Microalgae Powder
Light Spectra
Phycocyanin
Chlorophyll
Apparent Color
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