Production of value-added hydroxy fatty acids from Korean pine seed oil by Pseudomonas aeruginosa

2008 ◽  
Vol 136 ◽  
pp. S398-S399
Author(s):  
Hak-Ryul Kim ◽  
Deuk-Soo Kim ◽  
Min-Jung Suh ◽  
Jae-Han Bae ◽  
Jong-Sang Kim ◽  
...  
2000 ◽  
Vol 28 (6) ◽  
pp. 947-950 ◽  
Author(s):  
M. Smith ◽  
H. Moon ◽  
L. Kunst

Seed-specific expression in Arabidopsis thaliana of oleate hydroxylase enzymes from castor bean and Lesquerella fendleri resulted in the accumulation of hydroxy fatty acids in the seed oil. By using various Arabidopsis mutant lines it was shown that the endoplasmic reticulum (ER) n–-3 desaturase (FAD3) and the FAE1 condensing enzyme are involved in the synthesis of polyunsaturated and very-long-chain hydroxy fatty acids, respectively. In Arabidopsis plants with an active ER Δ12-oleate desaturase the presence of hydroxy fatty acids corresponded to an increase in the levels of 18:1 and a decrease in 18:2 levels. Expression in yeast indicates that the castor hydroxylase also has a low level of desaturase activity.


2020 ◽  
Vol 8 (12) ◽  
pp. 278-278
Author(s):  
Mutasim Khalil ◽  
◽  
Khalil Khalil ◽  

In our endeavor to produce value added Sudanese local products, we have been embarked upon studying our local crops seeds oils. In that respect we have directed our research towards identifying the seed oil fatty acids components revealing their abundance, physio-chemical properties and medical application (Mutasim and Ibrahim, 2016; 2017); Mutasim et al., 2017; 2019; 2020). Here in this note we are pleased to report an astonishing characteristic property of the oil extracted from one of a local crop seeds. It was found that on gentle shaking of the oil with water at room temperature, a stable off white oil/water emulsion is formed (Figure 1). It is then logical on bases of experimental results to envisage and even assume the presence of one type of a natural surfactant among the fatty acids components. To our knowledge, no report on a self-emulsifying oil has ever been reported. We believe that such a finding will have a biological impact since this oil is bioavailable and able to reduce the absorption of its saturated fats components. Whether that natural surfactant is an anionic, cationic or neutral one, it is awaiting our on-going investigation.


2011 ◽  
Vol 140 ◽  
pp. 273-277 ◽  
Author(s):  
Liang Fang ◽  
Wen Long Wu ◽  
Hui Fang Zhao ◽  
Lian Fei Lv ◽  
Wei Lin Li

The content and composition of fatty acids in the seed oil from 4 blackberry varieties were compared in this paper to provide further guidelines for use of blackberry seeds. Blackberry seed oil contains rich α-linolenic and linoleic acid making it an excellent dietary source of 18:3n-3 and essential fatty acids. The oil is a good dietary source of natural antioxidants for health promotion and disease prevention. The presence of n-3 fatty acid and antioxidants also suggests potential value-added utilization of blackberry seeds for preparing functional foods or supplemental products.


2019 ◽  
Vol 62 (3) ◽  
Author(s):  
Marili Funmilayo Zubair ◽  
Olubunmi Atolani ◽  
Sulyman Olalekan Ibrahim ◽  
Olubunmi Stephen Oguntoye ◽  
Rukayat Abiodun Oyegoke ◽  
...  

Abstract. The physicochemical properties, fatty acids profile, antimicrobial activity and soap potential of the seed oil of Prosopis africana were examined. The prepared natural antiseptic soap was absolutely devoid of all forms of synthetics such as alkaline, antimicrobial agents, preservatives, colourants and fragrances. The seed had an oil yield of 4.98% while the saponification, acid, free fatty-acids and iodine values were found to be 11.60 ± 0.54 mgKOH/g, 16.96 ± 0.57 mgKOH/g, 14.60 ± 0.45% oleic and 145.47 ± 0.66 I2 100 g-1 of the oil respectively. The GC-MS result of the prepared fatty acid methyl ester (FAMEs) indicated the presence of oleic acid (33.67%), a monounsaturated fatty acid as the most prominent fatty acid in the oil, followed linoleic acid (18:2), a polyunsaturated acid making up 31.92% of the oil. Palmitic acid (24.96%) is the most abundant saturated fatty acid while stearic acid and valeric acid makes up (7.3%) and (1.96%) respectively. The antimicrobial activity of the oil tested against ten strains of organisms which include: Streptococcus aureus, Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa, Salmonella typhi, Klebsiella pneumoniae, Candida albicans, Penicillium notatum, Rhijoptius stoloniter and Aspergillus niger showed good activity. The Minimum Inhibition Concentration (MIC) values obtained for the oils ranges from 31.25 to 125 mg/mL against all the test organisms and within the range 0.125- 0.5 mg/mL for the prepared soap. The physicochemical analysis of the P. africana soap was comparable to commercial antiseptic soaps. The result indicated that quality renewable natural antiseptic soaps ccould be obtained from P. africana seed oil. The result confirms that soaps made from natural lye (alkaline solution) has the capacity to replace existing commercial antiseptic soaps made of synthetic sodium or potassium hydroxides, antimicrobial agents, artificial preservatives and colourants which partly accounts for environmental pollution, increase in antimicrobial resistance and endocrine disruption. The adoption of this green antiseptic soap synthesis technique utilising underexplored P. africana seed oil can help mitigate the negative environmental impact of non-biodegradable synthetic reagents. Resumen. Se examinaron las propiedades fisicoquímicas, el perfil de ácidos grasos, la actividad antimicrobiana y el potencial de jabón de la semilla de aceite de Prosopis africana. El jabón antiséptico natural preparado carecía absolutamente de todas las formas de sintéticos tales como agentes alcalinos, antimicrobianos, conservantes, colorantes y fragancias. La semilla tuvo un rendimiento de aceite de 4.98%, mientras que los valores de saponificación, ácido, ácidos grasos libres y yodo fueron 11.60 ± 0.54 mgKOH / g, 16.96 ± 0.57 mgKOH / g, 14.60 ± 0.45% oleico y 145.47 ± 0.66 I2 100 g-1  del aceite respectivamente. El resultado de GC-MS del metil éster de ácido graso preparado (FAME) indicó la presencia de ácido oleico (33,67%), un ácido graso monoinsaturado como el ácido graso más prominente en el aceite, seguido del ácido linoleico (18: 2), Ácido poliinsaturado que constituye el 31,92% del aceite. El ácido palmítico (24,96%) es el ácido graso saturado más abundante, mientras que el ácido esteárico y el ácido valérico constituyen (7,3%) y (1,96%) respectivamente. La actividad antimicrobiana del aceite analizada contra diez cepas de organismos que incluyen: Streptococcus aureus, Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa, Salmonella typhi, Klebsiella pneumoniae, Candida albicans, Penicillium notatum, Rhijoptius st. Los valores de Concentración de inhibición mínima (CIM) obtenidos para los aceites varían de 31.25 a 125 mg / ml frente a todos los organismos de prueba y se encuentran dentro del rango de 0,125 a 0,5 mg / ml para el jabón preparado. El análisis fisicoquímico del jabón de P. africana fue comparable al de los jabones antisépticos comerciales. El resultado indicó que se podrían obtener jabones antisépticos naturales renovables de calidad a partir del aceite de semilla de P. africana. El resultado confirma que los jabones hechos de lejía natural (solución alcalina) tienen la capacidad de reemplazar los jabones antisépticos comerciales existentes hechos de hidróxidos de sodio o potasio sintéticos, agentes antimicrobianos, conservantes artificiales y colorantes que en parte representan la contaminación ambiental, el aumento de la resistencia antimicrobiana y la endocrina. ruptura. La adopción de esta técnica de síntesis de jabón antiséptico verde que utiliza aceite de semilla de P. africana poco explorada puede ayudar a mitigar el impacto ambiental negativo de los reactivos sintéticos no biodegradables.


2019 ◽  
Vol 134 ◽  
pp. 257-264 ◽  
Author(s):  
Kyeong-Ryeol Lee ◽  
Eun-Ha Kim ◽  
Inhwa Jeon ◽  
Yongjik Lee ◽  
Grace Q. Chen ◽  
...  

2021 ◽  
Vol 22 (2) ◽  
pp. 514
Author(s):  
Grace Q. Chen ◽  
Won Nyeong Kim ◽  
Kumiko Johnson ◽  
Mid-Eum Park ◽  
Kyeong-Ryeol Lee ◽  
...  

Hydroxy fatty acids (HFAs) have numerous industrial applications but are absent in most vegetable oils. Physaria lindheimeri accumulating 85% HFA in its seed oil makes it a valuable resource for engineering oilseed crops for HFA production. To discover lipid genes involved in HFA synthesis in P. lindheimeri, transcripts from developing seeds at various stages, as well as leaf and flower buds, were sequenced. Ninety-seven percent clean reads from 552,614,582 raw reads were assembled to 129,633 contigs (or transcripts) which represented 85,948 unique genes. Gene Ontology analysis indicated that 60% of the contigs matched proteins involved in biological process, cellular component or molecular function, while the remaining matched unknown proteins. We identified 42 P. lindheimeri genes involved in fatty acid and seed oil biosynthesis, and 39 of them shared 78–100% nucleotide identity with Arabidopsis orthologs. We manually annotated 16 key genes and 14 of them contained full-length protein sequences, indicating high coverage of clean reads to the assembled contigs. A detailed profiling of the 16 genes revealed various spatial and temporal expression patterns. The further comparison of their protein sequences uncovered amino acids conserved among HFA-producing species, but these varied among non-HFA-producing species. Our findings provide essential information for basic and applied research on HFA biosynthesis.


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