E-ISSN 2090-0503 | ISSN 1687-7497
 

Original Research 


INDUCTION OF POLYUNSATURATED FATTY ACIDS IN CANOLA (Brassica napus L.) PLANT BY GERMINATION AT LOW TEMPERATURE

Atiat Mohamed A. Hassan.

Abstract
Canola (Brassica napus L.) seeds were germinated at different temperatures (10 ± 3, 20 ± 3, and 30 ± 3C) for 8 days in controlled conditions. Oil degradation was higher at the moderate temperature (20 ± 3C), while the low temperature (10 ± 3C) resulted in a significant increase in total fatty acid contents (TFA). Wide variations were determined among the major fatty acid proportions during germination of canola seeds at different temperatures. There was a significant decrease in monounsaturated fatty acid (oleic, C18: 1) at the significant expense of polyunsaturated fatty acids (linoleic, C18: 2 and linolenic, C18: 3) with the progressive germination days, especially at low temperature relative to ungerminated seeds. Low temperature induced a significant increase in double bond index (DBI) in comparison to the moderate and higher temperature. The proportion of the essential fatty acids (linoleic, C18: 2 and linolenic, C18: 3) was increased by 2.2 fold at the lower temperature relative to ungerminated seeds. It is concluded that low temperature enhances synthesis of polyunsaturated fatty acids in canola during germination.

Key words: Brassica napus L., temperature, monounsaturated, polyunsaturated, total fatty acids, double bond index (DBI).


 
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Pubmed Style

Atiat Mohamed A. Hassan. INDUCTION OF POLYUNSATURATED FATTY ACIDS IN CANOLA (Brassica napus L.) PLANT BY GERMINATION AT LOW TEMPERATURE. Egypt. J. Exp. Biol. (Bot.). 2014; 10(2): 155-160.


Web Style

Atiat Mohamed A. Hassan. INDUCTION OF POLYUNSATURATED FATTY ACIDS IN CANOLA (Brassica napus L.) PLANT BY GERMINATION AT LOW TEMPERATURE. https://www.egyseb.net//?mno=186627 [Access: December 12, 2023].


AMA (American Medical Association) Style

Atiat Mohamed A. Hassan. INDUCTION OF POLYUNSATURATED FATTY ACIDS IN CANOLA (Brassica napus L.) PLANT BY GERMINATION AT LOW TEMPERATURE. Egypt. J. Exp. Biol. (Bot.). 2014; 10(2): 155-160.



Vancouver/ICMJE Style

Atiat Mohamed A. Hassan. INDUCTION OF POLYUNSATURATED FATTY ACIDS IN CANOLA (Brassica napus L.) PLANT BY GERMINATION AT LOW TEMPERATURE. Egypt. J. Exp. Biol. (Bot.). (2014), [cited December 12, 2023]; 10(2): 155-160.



Harvard Style

Atiat Mohamed A. Hassan (2014) INDUCTION OF POLYUNSATURATED FATTY ACIDS IN CANOLA (Brassica napus L.) PLANT BY GERMINATION AT LOW TEMPERATURE. Egypt. J. Exp. Biol. (Bot.), 10 (2), 155-160.



Turabian Style

Atiat Mohamed A. Hassan. 2014. INDUCTION OF POLYUNSATURATED FATTY ACIDS IN CANOLA (Brassica napus L.) PLANT BY GERMINATION AT LOW TEMPERATURE. THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany), 10 (2), 155-160.



Chicago Style

Atiat Mohamed A. Hassan. "INDUCTION OF POLYUNSATURATED FATTY ACIDS IN CANOLA (Brassica napus L.) PLANT BY GERMINATION AT LOW TEMPERATURE." THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany) 10 (2014), 155-160.



MLA (The Modern Language Association) Style

Atiat Mohamed A. Hassan. "INDUCTION OF POLYUNSATURATED FATTY ACIDS IN CANOLA (Brassica napus L.) PLANT BY GERMINATION AT LOW TEMPERATURE." THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany) 10.2 (2014), 155-160. Print.



APA (American Psychological Association) Style

Atiat Mohamed A. Hassan (2014) INDUCTION OF POLYUNSATURATED FATTY ACIDS IN CANOLA (Brassica napus L.) PLANT BY GERMINATION AT LOW TEMPERATURE. THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany), 10 (2), 155-160.