Detection of adulteration in camellia seed oil and sesame oil using an electronic nose

2006 ◽  
Vol 108 (2) ◽  
pp. 116-124 ◽  
Author(s):  
Zheng Hai ◽  
Jun Wang
Keyword(s):  
Electronic Nose ◽  
Seed Oil ◽  
Sesame Oil ◽  
Camellia Seed Oil

scholarly journals Determination of sesame oil, rice bran oil and pumpkin seed oil in ternary mixtures using FTIR spectroscopy and multivariate calibrations

Food Research ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 135-142 ◽  
Author(s):  
Irnawati ◽  
S. Riyanto ◽  
S. Martono ◽  
Abdul Rohman
Keyword(s):  
Root Mean Square Error ◽  
Rice Bran ◽  
Seed Oil ◽  
Rice Bran Oil ◽  
Sesame Oil ◽  
Ftir Spectra ◽  
Ternary Mixtures ◽  
Mean Square ◽  
Pumpkin Seed ◽  
Pumpkin Seed Oil

Pumpkin seed oil (PSO), rice bran oil (RBO), sesame oil (SEO) are considered as functional oils due to its biological activities which are beneficial to human health, as a consequence, these oils had the higher price. This attracted unethical players to blend these oils with lower price oils, therefore, its authentication by analysis of purity levels of oils is very important. This study highlighted the potential application of FTIR spectroscopy and multivariate calibrations for analysis of PSO, RBO, and SEO in ternary mixtures. Individual FTIR spectra of studied oils as well as in ternary mixtures with certain compositions were scanned and pre-processed. Two multivariate calibrations of principle component regression (PCR) and partial least square regression (PLSR) were compared and used to build the prediction models at optimized FTIR spectra regions. The selection of multivariate calibrations, wavenumbers region, and FTIR spectra modes was based on the statistical parameters of highest R2 and lowest values of root mean square error of calibration (RMSEC) and root mean square error of prediction (RMSEP). The results showed that PLSR using second derivative FTIR spectra at wavenumbers region of 3100-2750 and 1500-663 cm-1 was used to predict the levels of PSO in ternary mixtures with RBO and SEO with R2 > 0.99 in calibration and validation models along with RMSEC value of 0.0054% and RMSEP of 0.0179%. FTIR spectra using the second and first derivatives at wavenumbers of 3100-650 cm-1 were used for prediction of RBO and SEO in ternary mixture with PSO, respectively. It can be concluded that FTIR spectra combined with PLSR at certain wavenumbers region are accurate as indicated by high R2 values and precise as indicated by low values of RMSEC and RMSEP for analysis of PSO, RBO and SEO in ternary mixtures.

scholarly journals Determination of Tea Saponin in Camellia Seed Oil with UV and HPLC Analysis

2015 ◽  
Vol 03 (04) ◽  
pp. 30-37 ◽  
Author(s):  
Hadeil Omer Abdelgadir Ahmed ◽  
Chengming Wang
Keyword(s):  
Hplc Analysis ◽  
Seed Oil ◽  
Tea Saponin ◽  
Camellia Seed Oil

scholarly journals Effect of frying on physicochemical properties of sesame and soybean oil blend

2021 ◽  
Vol 13 (3) ◽  
pp. 820-829
Author(s):  
Meenakshi Garg ◽  
Surabhi Wason ◽  
Prem Lata Meena ◽  
Rajni Chopra ◽  
Susmita Dey Sadhu ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Soybean Oil ◽  
Peroxide Value ◽  
Seed Oil ◽  
Sesame Seed ◽  
Acid Value ◽  
Sesame Oil ◽  
Oil Blends ◽  
Sesame Seed Oil ◽  
Oil Blend

Most common cooking oil, such as soybean oil, can not be used for high-temperature applications, as they are highly susceptible to oxidation. Sesame seed oil rich in natural antioxidants provides high oxidative stability. Therefore, blending sesame oil with soybean oil offer improved oxidative stability. This study aims to determine the effect of frying on the physicochemical properties of sesame and soyabean oil blend. Soybean oil (SO) was blended with sesame seed oil (SSO) in the ratio of A-40:60, B-60:40 and C-50:50 so as to enhance its market acceptability. The changes occurring in soybean and sesame seed oil blend during repeated frying cycles were monitored. The parameters assessed were: Refractive index, specific gravity, viscosity, saponification value, free fatty acid (FFA) , peroxide value, and acid value. Fresh and fried oil blends were also characterised by Fourier Transform Infrared Spectroscopy (FTIR). No significant changes were observed for refractive index and specific gravity values in oil blends. Viscosity of blend B blend was the least, making it desirable for cooking purposes. However, FFA, acid value and peroxide value increased after each frying cycle. The increment of FFA and AV was found low for blend A (10% and 10%,) than blend B (27%,13%) and blend C (13%,13%). The peroxide value of all samples was within the acceptable range. The results of the present study definitely indicated that blending sesame oil with soybean oil could produce an oil blend which is economically feasible and provide desirable physicochemical properties for cooking purposes.

Effect of Microwave Treatment on the Extraction Speed and Quality of Camellia Seed Oil

2012 ◽  
Vol 549 ◽  
pp. 984-987
Author(s):  
Rui Xin Liu ◽  
Fei Yao ◽  
Su Xi Wu ◽  
Shan Shan Huang
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Seed Oil ◽  
Microwave Treatment ◽  
Oil Yield ◽  
Camellia Seed Oil

The effects of microwave treatment on the microstructure, oil yield of camellia seeds, and main physicochemical indexes, fatty acid composition of the oil were researched. The results showed that microwave treatment can improve the speed of extracting oil, and have a certain impact on the fatty acid composition and the quality of camellia seed oil.

scholarly journals Effects of Gossypium spp., Balanites aegyptiaca, and Sesamum indicum seeds oils on quality of chilled and frozen-thawed ram semen

2021 ◽  
pp. 1412-1419
Author(s):  
Adamou Akourki ◽  
Arantxa Echegaray ◽  
Orlando Perdomo ◽  
Nicolas Angel Escartin ◽  
Marta Guillén
Keyword(s):  
Seed Oil ◽  
Sperm Quality ◽  
Sesame Seed ◽  
Egg Yolk ◽  
Cottonseed Oil ◽  
Sesame Oil ◽  
Seed Oils ◽  
Balanites Aegyptiaca ◽  
Gossypium Spp ◽  
Sesame Seed Oil

Background and Aim: Essential oils found frequently in plants are well known for their activities against bacteria, viruses, and fungi, and antioxidant properties. This study aimed to analyze egg yolk replacement by seed oils of Gossypium spp. (cotton), Balanites aegyptiaca (desert date), and Sesamum indicum (sesame) in semen extender, on ram sperm quality chilled at 4°C and frozen-thawed. Materials and Methods: Ejaculates were collected from adult rams and refrigerated at 4°C in a Tris-based extender containing 1.25%, 2.5%, 5%, and 10% of Gossypium spp., B. aegyptiaca, and S. indicum seed oils, to evaluate which were the two best extenders for comparison with BIOXcell, a commercial extender for deep freezing ram semen. Results: The data showed that sperm movements analyzed by the CASA system were faster in extenders supplemented with 2.5-5% of cottonseed oil and 1.25-10% of sesame oil, whereas in the extender containing B. aegyptiaca oil, all seminal parameters studied had the worst values. During the sperm-freezing process, 5% of cottonseed oil and 5% sesame seed oil were selected from the first study, with sesame oil reaching the best sperm quality. Thus, sperm motility and velocity were 44.14±13.99%, 24.44±12.6%, and 25.92±11.50%; and 20.26±9.56%, 8.76±6.38%, and 9.42±5.40%, respectively, for sesame oil, cottonseed oil, and BIOXcell. Conclusion: In summary, 2.5-10% of cottonseed oil and 1.25-10% of sesame seed oil can replace egg yolk in a Tris–egg yolk–based extender. Moreover, a Tris-based extender supplemented with 5% sesame seed oil could be an alternative for deep freezing ram semen, even though these results need to be confirmed with semen collected from rams with appropriate sexual rest.

scholarly journals Protectant Effect of Vegetable Oils against Cowpea Weevil (Callosobruchus maculatus) on Stored Cowpea [Vigna unguiculata (L.) Walp]

2020 ◽  
pp. 1-8
Author(s):  
Kennedy Poloma Yoriyo ◽  
Garba Usman ◽  
Ezra Abba ◽  
Michael Mamman Degri
Keyword(s):  
Vegetable Oils ◽  
Palm Oil ◽  
Cotton Seed ◽  
Seed Oil ◽  
Callosobruchus Maculatus ◽  
Sesame Oil ◽  
Groundnut Oil ◽  
Cowpea Weevil ◽  
The Common ◽  
Cotton Seed Oil

Cowpea is one of the common edible annual herbaceous legume. Callosobruchus maculatus is one of the common post-harvest pest of cowpea.This work was aimed at determining the protectant effect of five vegetable oils; coconut oil, cotton seed oil, groundnut oil, palm oil and sesame oil for the protection of stored cowpea against cowpea weevil (Callosobruchus maculatus).The study was conducted in Gombe State University between October, 2018 and April, 2019. Black eye seeds were used for the experiment. A completely randomized design with five replicates per treatment was used.Black eyed seeds (susceptible variety) used for the experiment were subjected to different oil treatments namely: coconut, cotton, groundnut, palm and sesame oils applied at 0.4, 0.8 and 1.2 ml/100 g of cowpea equivalent to 4, 8 and 12 kg. Effect of the oils on weight lost and seed germination was also tested.Percentage adult mortality at 12 ml/Kg revealed that all the five oils killed 100% of the insects. Among the different edible oils evaluated, cotton seed oil was more effective killing 95% of the insect at 4 ml/kg and 100% at 8 ml/kg. The lowest mortality was recorded in the treatment with palm oil with 60 and 91.67% mortality at 4 and 8 ml/kg dose treatment respectively. Minimum percentage weight loss after 90 days of storage was observed in grains treated with cotton seed oil (1.95%) followed by sesame oil (2.00%) and groundnut oil (2.38%) at 12 ml/kg grains. Cotton seed oil, groundnut oil and sesame oil at doses between 8 and 12 ml/kg could be effective for protecting cowpea in storage against cowpea weevil for 90 days of storage.All the treatments indicated minimal effect on the germination of cowpea. The 8 ml/kg of cotton seed, groundnut and sesameoils investigated are promising bio friendly preservatives that could serve as an alternative formulations to synthetic chemical based insecticides for storage of cowpea.

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