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International Review of Applied Sciences and Engineering
Authors: Adebayo Surajudeen Adekunle, Adekunle Akanni Adeleke, Peter Pelumi Ikubanni, Peter Olorunleke Omoniyi, Tajudeen Adelani Gbadamosi and Jamiu Kolawole Odusote

. viscosity (mm 2 /s) at 40 °C 32.34 33.24 43.95 31.87 32.99 38.33 Flash point (°C) 220 220 160 240 230 190 Pour point (°C) 13 15 19.5 9 12 18.7 Acid value (mgKOH/g) 2.328 2.418 5.509 2.098 2.224 4.89 Peroxide value 1.94 1.86 1.74 1.20 1.31 1.55 Iodine value

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Free and bound aroma (precursors) compounds of the Muscat of Alexandria wines and the effect of skin contact (7 h, at 15 °C) on aroma composition have been investigated. The aroma compounds, extracted with the pentan-dichloromethane (2:1) method and Amberlite XAD-2 resin, were analysed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). A total of 41 free volatile compounds (12 esters, 8 acids, 7 terpenes, 5 alcohols, 4 phenols, 3 C-6 compounds, 2 carbonyl compounds) and 28 bound compounds (10 terpenes, 2 alcohols, 2 C-6 compounds, 5 fatty acids, 6 phenols, 2 C-13 norisoprenoids, 1 carbonyl compound) were identified in Muscat of Alexandria wines. Skin contact treatment increased the total free and bound aroma compound levels, and improved the wine quality by affecting the intensity as well as the quality of aroma.

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This study was conducted to develop a low cost method to preserve papaya (Carica papaya L.) pulp at ambient temperature with a combination of treatments including acid, heat, and cinnamon oil. Papaya pulp processed without and with 200 ppm cinnamon essential oil at pH 5.1, 81 °C, 7 min (ST2 and ST3); pH 3.9, 69 °C, 13 min (ST4 and ST5); and pH 4.5, 75 °C, 15 min (ST6 and ST7) was stored for 8 weeks at ambient temperature (28±2 °C). The cinnamaldehyde content of the papaya pulp treated with cinnamon oil decreased significantly during storage. ST5 and ST7 retained significantly higher β-carotene contents and lightness values compared to ST4 and ST6 during storage. The results indicated that acidification of papaya pulp to pH 4.5 and pasteurization at 75 °C for 15 min with 200 ppm cinnamon oil can be applied to obtain safe and high quality product, which is stable for 8 weeks at ambient temperature.

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Acta Alimentaria
Authors: B. Šimundić, G. Krešić, A. Živkovićb and B. Medugorac

, B., Kniewald, Z. & Kniewald, J. (2003): Cytotoxic effects of organochlorine insecticides in baby hamster kidney (BHK 21 C13) cell line. Proceedings of scientific conference: Biotechnology and food. Curr. Stud. Biotechnol. , 3 , 177

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. Inbar , Y. , Chen , Y. & Hadar , Y. ( 1989 ): Solid-state C-13 nuclear magnetic-resonance and infrared-spectroscopy of composted organic-matter . Soil Sci. Soc. Am. J. , 53 ( 6 ), 1695 – 1701

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NMR data and assignments δ(ppm): C 1 = 149.3; C 2 = 133.2; C 3 = 132.1; C 4 = 129.8; C 5 = 129.4; C 6 = 124.4; C 7 = 120.4; C 8 = 58.02; C 9 = 55.11; C 10 = 55.07; C 11 = 48.72; C 12 = 48.67; C 13 = 46.52; C 14 = 21.16. IR data

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-photosensitized oxidative transformation of rhodamine B under visible light irradiation in aqueous TiO 2 dispersions . J Phys Chem B . 102 : 5845 – 5851 10.1021/jp980922c . 13. Moser , J , Gratzel , M

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, catalyst stability, and 1-hexene/1-octene selectivity in the ethylene trimerization and tetramerization reaction . Organometallics 26 : 2561 – 2569 10.1021/om070029c . 13. McGuinness , DS

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and 18 °C. 1.3 Sampling and sample preparation About 200 g sucuk was homogenised for the determination of lipid oxidation levels of samples (peroxide value

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.08 0.04 C6:0 2.50 0.14 0.12 0.03 C8:0 1.37 0.09 0.07 0.01 C10:0 2.89 0.16 0.10 0.04 C11:0 0.34 0.04 n.d. – C12:0 3.58 0.16 0.30 0.06 C13:0 0.12 0.02 0.06 0.01 C14:0 11.63 0.34 1.22 0.16 C14:1 1.03 0.06 n.d. – C15:0 1.21 0.09 0.07 0.02 C16:0 32.57 0

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