Self-cured Alkyd Resin Using Non-Drying Avocado Seed Oil as a Material of Regenerative Resource

2018 ◽  
Vol 39 (5) ◽  
pp. 643-650 ◽  
Author(s):  
C. F. Uzoh ◽  
O. D. Onukwuli
Keyword(s):  
Alkyd Resin ◽  
Seed Oil ◽  
Avocado Seed ◽  
Avocado Seed Oil

scholarly journals Antioxidant and Anti‐inflammatory Activities of Methanolic Fraction from Native Mexican Avocado Seed Oil

2020 ◽  
Vol 34 (S1) ◽  
pp. 1-1
Author(s):  
Baruc Zavala-Guerrero ◽  
Alejandra Hernández-García ◽  
Rafael Torres-Martínez ◽  
Esperanza Meléndez-Herrera ◽  
Patricia Ríos-Chávez ◽  
...  
Keyword(s):  
Seed Oil ◽  
Anti Inflammatory ◽  
Avocado Seed ◽  
Avocado Seed Oil

Chemical characterization of lysyl oxidase inhibitor from avocado seed oil

1995 ◽  
Vol 72 (2) ◽  
pp. 225-229 ◽  
Author(s):  
Gennady Rosenblat ◽  
Herbert M. Kagan ◽  
Manzoor A. Shah ◽  
Gerchard Spiteller ◽  
Itshak Neeman
Keyword(s):  
Seed Oil ◽  
Lysyl Oxidase ◽  
Chemical Characterization ◽  
Oxidase Inhibitor ◽  
Avocado Seed ◽  
Avocado Seed Oil

scholarly journals SINTESIS MEMBRAN POLIURETAN BERBASIS MINYAK BIJI ALPUKAT (Avocado Seed Oil) DAN HEKSAMETILEN-1,6-DIISOSIANAT (HMDI)

2016 ◽  
Vol 16 (2) ◽  
pp. 50-54
Author(s):  
Fitriani Fitriani ◽  
Marlina Marlina ◽  
Khairan Khairan
Keyword(s):  
Spectrum Analysis ◽  
Seed Oil ◽  
Elastic Solid ◽  
Ftir Spectrum ◽  
Synthesis Process ◽  
Curing Process ◽  
Petri Dishes ◽  
Avocado Seed ◽  
Avocado Seed Oil ◽  
Polyurethane Membrane

This research aims to synthesize polyurethane membrace from avocado seed oil as a source of hydrixyl (-OH) and hexametylhene -1.6-dissocyanate (HDMI) as a source of isocynate (-NCO). The oil were extracted from avocado seeds at temperature of  60-80oC for 2 hours using n-hexane solvent. The results of FTIR spectrum analysis from avocado seed oil showed that there were -OH clusters absorption on the wavelength number of 3393.819 cm-1, thus this oil can be used to synthesize polyurethane membrane. The isocyanate composition, time and temperature during synthesis process of polyurethane membrane were varied. The polyurethane membrane were moulded in petri dishes, then heated up for 48 hours on the temperature of  70oC, and finally taken out from its mould. The characteristics of the polyurethane membrane from avocado seed oil are brown in colour, homogenous, elastic, solid, transparent and shaped like a membrane. The measurements from FTIR spectrum showed that the -NCO clusters are no longer present. This condition happened because there were no more absorption in the wavelength number of  2270 cm-1 . It can be concluded that the isocyanate has completely reacted during polymerization and the curing process, thus urethane was created in the 1699,965 cm-1 absorption which was the urethane C=O clusters absorption.

scholarly journals EKSTRAKSI MINYAK DARI BIJI ALPUKAT (Persea Americana Mill) MENGGUNAKAN PELARUT N-HEPTANA

2016 ◽  
Vol 5 (1) ◽  
pp. 34-39 ◽  
Author(s):  
Atikah Risyad ◽  
Resi Levi Permadani ◽  
Siswarni MZ
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Seed Oil ◽  
Saturated Fatty Acids ◽  
Seed Mass ◽  
Persea Americana ◽  
Extraction Temperature ◽  
Food Ingredients ◽  
Avocado Seed ◽  
Avocado Seed Oil

Avocado production is quite high in Indonesia led to increased waste avocado seed. Avocado seeds have an oil content large enough to potentially be used as a source of vegetable oil. A commonly used solvent for the extraction process is hexane. However, hexane proved to have an alarming danger if it is used for the extraction of food ingredients, necessitating alternative solvents such as n-heptane. This study was conducted to evaluate the effect of variable research on avocado seed oil extraction using n-heptane. The method used in this study is Response Surface Methodology-Central Composite Design (RSM-CCD) by varying the time of extraction, extraction temperature, avocado seed mass and volume of the solvent n-heptane. ANOVA with 95% confidence level (p <0.05) showed that the variables have a significant influence on the yield of avocado seed oil produced by the value of R2 = 94.24% at constant temperature and R2 = 93.95% at constant time. Characteristics of avocado seed oil is a orange color, density amounted to 0.71 g/ml, viscosity amounted to 0.43 cP, and FFA amounted to 2.76%. Analysis of fatty acid composition of avocado seed oil showed fatty acid component is predominantly polyunsaturated fatty acids as linoleic acid of 47.3531% (w/w), saturated fatty acids such as palmitic acid amounted to 20.3439% (w/w), and monounsaturated fatty acids as oleic acid amounted to 15.8823% (w/w).

Preparation and Comparative Analysis of Neem and Dehydrated Castor Seed Oil Alkyd Resin Paint Coatings

2018 ◽  
Vol 2 (10) ◽  
pp. 460-465
Author(s):  
Joshua Omowanle ◽  
◽  
Gbekeayo Ayo ◽  
James Habila
Keyword(s):  
Comparative Analysis ◽  
Alkyd Resin ◽  
Seed Oil ◽  
Castor Seed ◽  
Paint Coatings

scholarly journals Characterization of Unripe and Mature Avocado Seed Oil in Different Proportions as Phase Change Materials and Simulation of Their Cooling Storage

Molecules ◽  
2020 ◽  
Vol 26 (1) ◽  
pp. 107
Author(s):  
Evelyn Reyes-Cueva ◽  
Juan Francisco Nicolalde ◽  
Javier Martínez-Gómez
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Seed Oil ◽  
Energy System ◽  
Maturity Stage ◽  
Natural Environments ◽  
Renewable Materials ◽  
Scanning Calorimetry ◽  
Avocado Seed

Environmental problems have been associated with energy consumption and waste management. A solution is the development of renewable materials such as organic phase change materials. Characterization of new materials allows knowing their applications and simulations provide an idea of how they can developed. Consequently, this research is focused on the thermal and chemical characterization of five different avocado seed oils depending on the maturity stage of the seed: 100% unripe, 25% mature-75% unripe, 50% mature-50% unripe, 75% mature-25% unripe, and 100% mature. The characterization was performed by differential scanning calorimetry, Fourier transform infrared spectroscopy, and thermogravimetric analysis. The best oil for natural environments corresponded to 100% matured seed with an enthalpy of fusion of 52.93 J·g−1, and a degradation temperature between 241–545 °C. In addition, the FTIR analysis shows that unripe seed oil seems to contain more lipids than a mature one. Furthermore, a simulation with an isothermal box was conducted with the characterized oil with an initial temperature of −14 °C for the isothermal box, −27 °C for the PCM box, and an ambient temperature of 25 °C. The results show that without the PCM the temperature can reach −8 °C and with it is −12 °C after 7 h, proving its application as a cold thermal energy system.

Sign in / Sign up

Export Citation Format

Share Document