Effect of synthetic antioxidants on storage stability of Calophyllum inophyllum biodiesel

2014 ◽  
Vol 18 (sup6) ◽  
pp. S6-90-S6-94 ◽  
Author(s):  
I. M. Rizwanul Fattah ◽  
H. H. Masjuki ◽  
M.A. Kalam ◽  
B. M. Masum
Keyword(s):  
Storage Stability ◽  
Synthetic Antioxidants ◽  
Calophyllum Inophyllum

scholarly journals Nano-encapsulation of sweet basil essential oil based on native gums and its application in controlling the oxidative stability of Kilka fish oil

2021 ◽  
Author(s):  
Sahar Aboutalebzadeh ◽  
reza esmaeilzadeh kenari ◽  
Ali Jafarpour
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Extraction Efficiency ◽  
Storage Stability ◽  
Extraction Methods ◽  
Lepidium Sativum ◽  
Synthetic Antioxidants ◽  
Free Mode ◽  
Level 1 ◽  
The Impact

In the first section of this study, the effects of two different extraction methods on the efficiency and chemical composition and antioxidant activity were compared. Extraction efficiency of supercritical fluid was significantly higher than distillation of water. The results showed that antioxidant activity increased by increasing the concentration of the essential oil. In the second part of the study, to evaluate the impact of various walls, Lepidium sativum (LS) , Lepidium perfoliatum (LP) and a combination of both (LP/LS)were used for nano-encapsulation essential oil of basil by freeze-drying. Nanoencapsulate powder was evaluated regarding efficiency, particle size, PDI, Zeta poteintial,SEM, viscosity, Brix,pH, density.humidity, aw and FTIR. In the third part, essential oil of basil in free mode at Level 1%, 5% and 20% and in encapsulated at the level of 2% and TBHQ at 0.01% added to Kilka oil without antioxidants and then the samples were place in an oven at 60 ° C for 16 days. Storage stability of kilka oil regarding peroxide, thiobarbituric and color were analyzed. The results showed that basil essential oil had antioxidant activity and reduced the oxidation process, and also nanocapsule essential oil (especially with a coating of LP gum) showed better antioxidant activity than free essential oil, so that its antioxidant activity is competitive with TBHQ synthetic antioxidants. Finally, we can conclude that it is possible to substitute synthetic antioxidants by natural ones like olive leaf phenolic compounds but we have to apply some forms of encapsulation techniques in order to protect their properties.

Investigation and enhancement on fuel stability characteristics of biodiesel dosed with various synthetic antioxidants

2018 ◽  
Vol 29 (7) ◽  
pp. 1189-1207 ◽  
Author(s):  
P Mohamed Shameer ◽  
P Mohamed Nishath
Keyword(s):  
Storage Stability ◽  
Atmospheric Oxygen ◽  
Oxidation Stability ◽  
Oxidative Degradation ◽  
Butylated Hydroxytoluene ◽  
Synthetic Antioxidants ◽  
Commercial Use ◽  
The Past ◽  
Biodiesel Feedstocks ◽  
Spectrum Region

Nearly 350 species of biodiesel feedstocks have been identified by many researchers for the past few decades. Unlike petroleum diesel, the biodiesel degrades rapidly and deterioration of its quality occurred while contacting with atmospheric oxygen. This main drawback of instability of fuel properties limited the commercial use of biodiesel in the global fuel market. To inhibit this oxidative degradation of biodiesel, the antioxidants are used. Comparing to other antioxidants, the synthetic antioxidants (phenolic) are more efficient. This study investigates the effects of commercially available and cheap synthetic antioxidants (TBHQ – tert-butylhydroxyquinone, PY – pyrogallol, PG – propyl gallate, BHT – butylated hydroxytoluene, and BHA – butylated hydroxyanisole) at 1000 ppm concentration on the fuel stability of Calophyllum inophyllum biodiesel. The discrepancy in antioxidant activity has been characterized using Fourier transform infrared spectroscopy by analyzing the O–H and C–H molecular chains prevalence in the infrared spectrum region of 3000–3700 cm−1 and 2800–3000 cm−1. TBHQ at 1000 ppm dosed with C. inophyllum biodiesel improves the oxidation stability by 42.56%, storage stability by 36.57%, and thermal stability by 41.02% when compared to those of pure biodiesel (B100) without any antioxidant. The rank of antioxidants effectiveness with pure biodiesel is obtained as TBHQ > PG > PY > BHT > BHA.

scholarly journals Effect of natural and synthetic antioxidants on oxidation and storage stability of mechanically separated tilapia meat

LWT ◽  
2021 ◽  
pp. 112679
Author(s):  
Ana Cláudia Silveira Alexandre ◽  
Francielly Corrêa Albergaria ◽  
Lara Maria dos Santos Ferraz and Silva ◽  
Luíza Aparecida Carneiro Fernandes ◽  
Maria Emília de Sousa Gomes ◽  
...  
Keyword(s):  
Storage Stability ◽  
Synthetic Antioxidants ◽  
And Storage ◽  
Natural And Synthetic

Elastase inhibitors and cancer preventive potential agents from Calophyllum inophyllum (L.) grown in French Polynesia

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
T Leu ◽  
S Soulet ◽  
G Herbette ◽  
R Faure ◽  
JP Bianchini ◽  
...  
Keyword(s):  
French Polynesia ◽  
Calophyllum Inophyllum

STUDY ON DEVELOPMENT OF PASTA PRODUCT WITH INCORPORATION OF OCIMUM SANCTUM (BASIL) TO ENHANCE THE SENSORY AND NUTRITIONAL QUALITY

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
PIYUSH MISHRA ◽  
DEVENDRA KUMAR BHATT
Keyword(s):  
Ambient Temperature ◽  
Shelf Life ◽  
Nutritional Quality ◽  
Leaf Extract ◽  
Storage Stability ◽  
Natural Antioxidants ◽  
Sensory Properties ◽  
Ocimum Sanctum ◽  
Leaf Powder

Pasta was prepared by incorporation of Ocimum sanctum (Basil) for better textural and sensory properties. The pasta was incorporated with the leaf extract of Ocimum sanctum at different concentrations of control, 5, 10, and 15.The natural antioxidants present in the O. sanctum leaf powder that was incorporated in the fruit leather showed extended shelf-life over three months when compared with control, without any added preservative at ambient temperature. Also the nutritional stability of the product was studied under two flexible packages of polypropylene and polyester out of that the products packed in polypropylene showed better storage stability .

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