scholarly journals Karakteristik Campuran Minyak dari Minyak Sawit Merah Murni dengan Minyak Kelapa atau Minyak Inti Sawit [Characteristics of Oil Mixtures from Virgin Red Palm Oil with Coconut Oil or Palm Kernel Oil]

Buletin Palma ◽  
2020 ◽  
Vol 21 (2) ◽  
pp. 68
Author(s):  
Hasrul Abdi Hasibuan ◽  
Lerissa Aulia Siregar

<p>The use of virgin red palm oil (VRPO) as a food product is very useful because it used as a source of fat and bioactive compounds (carotene, tocopherol, and tocotrienol). Increasing the use of VRPO can be conducted by blending it with lauric oils (coconut oil and palm kernel oil) containing medium-chain triacylglycerol (MCT) to produce a healthy oil. This research was conducted to examine the physicochemical properties of VRPO with coconut oil (CNO) or palm kernel oil (PKO) blends at a weight ratio of 100:0 - 0:100. The results showed that the mixtures of VRPO with CNO or PKO influenced the free fatty acid content, carotene content, fatty acids composition, iodine value, melting point, and solid fat content. Enhancing the amount of CNO or PKO onto VRPO causes the blends to have eutectic behavior (easy to melt). The VRPO: CNO and VRPO: PKO blends, at the ratio of 20:80 and 30:70, respectively, can be used as cooking oil. The VRPO: CNO blends at the ratio of 99:1 – 95:5 can be used for baking shortening while the VRPO: PKO blend at the ratio of 70:30 can be used for table margarine.</p><p align="center"><strong>ABSTRAK</strong></p><p>Penggunaan minyak sawit merah murni (<em>virgin red palm oil, </em>VRPO) sebagai produk pangan sangat bermanfaat karena VRPO sebagai sumber lemak dan senyawa bioaktif (karoten, tokoferol dan tokotrienol). Peningkatan pemanfaatan VRPO dapat dilakukan dengan memadukannya dengan minyak laurat (minyak kelapa dan minyak inti sawit) yang mengandung <em>medium chain triacylglycerol </em>(MCT) untuk menghasilkan campuran minyak sehat. Penelitian ini dilakukan untuk mengkaji sifat fisikokimia campuran minyak dari VRPO dengan minyak kelapa (<em>coconut oil, </em>CNO) atau minyak inti sawit (<em>palm kernel oil, </em>PKO) pada rasio berat 100:0 - 0:100. Hasil penelitian menunjukkan bahwa campuran minyak dari VRPO dengan CNO atau PKO mempengaruhi kadar asam lemak bebas, kadar karoten, komposisi asam lemak, bilangan iodin, titik leleh dan kandungan lemak padat. Peningkatan jumlah CNO atau PKO ke dalam VRPO menyebabkan campuran memiliki perilaku eutektik (mudah mencair). Campuran VRPO dengan CNO dan VRPO dengan PKO, masing-masing pada rasio 20:80 dan 30:70 dapat digunakan sebagai minyak goreng. Campuran VRPO dengan CNO pada rasio 99:1 - 95:5 dapat digunakan sebagai produk shortening untuk roti sementara campuran VRPO dengan PKO pada rasio 70:30 dapat digunakan untuk margarin meja.</p>

2016 ◽  
Vol 78 (11-2) ◽  
Author(s):  
Norizzah Abd Rashid ◽  
Nur Azimah Kamarulzaman ◽  
Zaliha Omar

Palm oil (PO) and palm kernel oil (PKO) have different chemical composition and physical properties. Both oils have limited application in their natural form. To widen their commercial values, PO and PKO were modified by blending and subsequently followed by interesterification (IE). Interesterification is the rearrangement of fatty acids within and among different triacylglycerols, using enzyme or chemical as the catalysts. Palm oil with iodine value (IV) of 52.6 and PKO (IV = 17.5) were mixed in different ratios from 25:75 to 75:25 (%wt/wt) at 25% increment. The blends were subjected to chemical and enzymatic interesterification using sodium methoxide and Lipozyme TL IM as catalysts, respectively. The effects of chemical and enzymatic interesterification on the triacylglycerols (TAG) composition, thermal properties, solid fat content (SFC) and slip melting point (SMP) were investigated.  Chemical interesterification (CIE) caused significant changes in the TAG composition of the oil blend compared to enzymatic interesterification (EIE). This changes led to a significantly higher (p<0.05) SMP for the chemically-interesterified than the enzymatically-interesterified blends. The differential scanning calorimetry (DSC) melting thermograms confirmed that harder product with higher final complete melting temperature was obtained from the chemically-interesterified blends. Similar SFC profiles for all oil blends were observed with steep SFC slopes for blend with high proportion of PKO. Chemical interesterification reduced the eutectic interactions that occurred at 5 to 25°C in the non-interesterified and enzymatically-interesterified blends. Thus, CIE caused significant changes in physicochemical properties of the PO and PKO blends compared to EIE. Results from this study could improve the existing PO and PKO properties and widen their usage in food and non-food applications.


2019 ◽  
Vol 4 (2) ◽  
pp. 1051-1059 ◽  
Author(s):  
Roger A Cochrane ◽  
Steve S Dritz ◽  
Jason C Woodworth ◽  
Charles R Stark ◽  
Marut Saensukjaroenphon ◽  
...  

Abstract: The overall objective of this study was to compare the efficacy of medium-chain fatty acids (MCFA) to other common fat sources to minimize the risk of porcine epidemic diarrhea virus (PEDV) cross-contamination in a pig bioassay. Treatments were feed with mitigants inoculated with PEDV after application and were: 1) positive control with no chemical treatment; 2) 0.325% commercially available formaldehyde-based product; 3) 1% blend of 1:1:1 caproic (C6), caprylic (C8), and capric acids (C10) and applied with an aerosolizing nozzle; 4) treatment 3 applied directly into the mixer without an aerosolizing nozzle; 5) 0.66% caproic acid; 6) 0.66% caprylic acid; 7) 0.66% capric acid; 8) 0.66% lauric acid; 9) 1% blend of 1:1 capric and lauric acids; 10) 0.3% commercially available dry C12 product; 11) 1% canola oil; 12) 1% choice white grease; 13) 2% coconut oil; 14) 1% coconut oil; 15) 2% palm kernel oil; 16) 1% palm kernel oil; 17) 1% soy oil and four analysis days (0, 1, 3, and 7 post inoculation) as well as 1 treatment of PEDV-negative feed without chemical treatment. There was a treatment × day interaction (P &lt; 0.002) for detectable PEDV RNA. The magnitude of the increase in Ct value from d 0 to 7 was dependent upon the individual treatments. Feed treated with individual MCFA, 1% MCFA blend, or commercial-based formaldehyde had fewer (P &lt; 0.05) detectable viral particles than all other treatments. Commercial-based formaldehyde, 1% MCFA, 0.66% caproic, 0.66% caprylic, and 0.66% capric acids had no evidence of infectivity 10-d old pig bioassay, while there was no evidence the C12 commercial product or longer chain fat sources inhibited PEDV infectivity. Interestingly, pigs given the coconut oil source with the highest composition of caprylic and capric only showed signs of infectivity on the last day of bioassay. These data suggest some MCFA have potential for reducing post feed manufacture PEDV contamination.


Fuel ◽  
2021 ◽  
Vol 305 ◽  
pp. 121569
Author(s):  
Chao Jin ◽  
Xin Liu ◽  
Tianyun Sun ◽  
Jeffrey Dankwa Ampah ◽  
Zhenlong Geng ◽  
...  

2021 ◽  
Author(s):  
Nick Pasiecznik

Abstract E. guineensis, the oil palm or African oil palm, is native to equatorial Africa, although the only other species in the genus (E. oleifera) is indigenous to South and Central America. E. guineensis, however, is the major economic species: fruits of E. oleifera have a much lower oil content and are used only locally (Westphal and Jansen, 1989). However, E. guineensis was introduced into South America during the time of the slave trade, and naturalized groves are reported in coastal areas of Brazil near Bélem. In the mid-1800s it was introduced to South-East Asia via the Botanic Gardens in Bogor, Indonesia. The first oil-palm estates in Sumatra (since 1911) and Malaysia (since 1917) used plant material from second- and third-generation descendants of the original Bogor palms, from which one of the breeding populations, the Deli Dura, is derived (Westphal and Jansen, 1989). After soyabean, E. guineensis is the second most important crop worldwide for the supply of edible vegetable oil. Palm oil kernel, for example, is a major agricultural export from Malaysia, and South-East Asia is the main area of production.E. guineensis yields two types of oil: palm oil from the fleshy mesocarp, and palm-kernel oil from the kernel, in a volume ratio 10:1. Most palm oil is used in food preparation (margarines, and industrial frying oils used to prepare snack foods, etc.). Palm-kernel oil is similar in composition and properties to coconut oil, and is used in confectionery, where its higher melting point is particularly useful. It is also used in the manufacture of lubricants, plastics, cosmetics and soaps. The oil palm is a monoecious, erect, single-stemmed tree usually 20-30 m high. The root system is shallow and adventitious, forming a dense mat in the top 35 cm of the soil. The main stem is cylindrical, up to 75 cm diameter. E. guineensis palm fronds are not as suitable for thatching as other palm species, as the leaflets attach to the rachis at two angles. The oil palm is indigenous to the lowland humid tropics, and thrives on a good moisture supply and relatively open conditions. It can tolerate fluctuating water-tables with periods of standing water, although continuously flooded conditions are unsuitable. Sites often selected as suitable for oil palm are swamps, riverbanks, or sites considered too moist for tropical rain forest trees. Rainfall is often the major factor limiting production in plantations: highest yields occur where rainfall is evenly distributed throughout the year, with an optimum of 150 mm per month (Westphal and Jansen, 1989). Oil palms can grow on a variety of soil types, from sandy soils to lateritic red and yellow podzols, young volcanic soils, alluvial clays and peat soils; water-holding capacity appears to be the most important soil criterion. It is a demanding crop in terms of soil nutrients. The oil palm also has potential for incorporation into agroforestry practices. Traditional oil palm management in some areas of West Africa often incorporated both pure oil palm groves (perhaps selectively retained), scattered oil palms within temporary fields, and unexploited oil palms in mixed forest (Gupta, 1993). Harvesting of fruits usually starts about 2½ years after field planting; bunches ripen throughout the year and so harvesting usually takes place at intervals of 2 to 3 weeks in any particular area. Because oil palm is so responsive to environmental conditions, yields may vary greatly. However, over the lifetime of a palm tree, yields generally rise to a maximum in the first 6-8 years (after field planting), and will subsequently decline slowly. In Malaysia and Sumatra, well-managed plantations yield between 24 and 32 tonnes/hectare of fruit bunches; the oil yield from this will be between 4.8 and 7 tonnes/hectare. Oil palm plantations are often regarded as a better use of the land than annual food crops in humid tropical areas where soils are prone to leaching: the plantations provide continuous ground cover, and the palm canopy helps protect against soil erosion. Oil palm stems are increasingly used as a raw material for paper and composite board production. This area has big prospects in wood-based industries. It is recommended that more research is undertaken into the properties and utilization. Propagation techniques, the management of pests and diseases, and genetic resources are other areas in which studies could usefully be undertaken.


2007 ◽  
Vol 109 (2) ◽  
pp. 107-119 ◽  
Author(s):  
Chee Tein Low ◽  
Rosfarizan Mohamad ◽  
Chin Ping Tan ◽  
Kamariah Long ◽  
Rosnah Ismail ◽  
...  

2021 ◽  
Vol 25 (5) ◽  
pp. 877-885
Author(s):  
A.J. Odebode ◽  
K.L. Njoku ◽  
A.A. Adesuyi ◽  
M.O. Akinola

This study was carried out to investigate the phytotoxicity of spent engine oil and palm kernel sludge on seed germination, seedling early growth and survival of sunflower (Helianthus annuus L) and its phytoremediating potential. 8.0 kg topsoil mixed with 2, 4, 6, 8 and 10% (w/v) of spent engine oil and palm kernel sludge, while the control was not mixed with spent oil and sludge (0%). The seeds were sown on these soils and monitored daily. Parameters taken were; plant height, leaf number and stem girth. The result showed that spent engine oil treated plants adversely affected growth compared to palm kernel sludge plants and control which performed better. For plant height, the mean stem girth for control at 2nd week was 0.40±0.05 mm, spent engine oil was 5.96±0.97 palm kernel oil effluent was 14.73±1.16 and at 12th week, control was 1.30±0.05 while for SEO the plant had withered and 124.6±9.02 for POE. Number of leaves at the 12th week was 26.00±2.08 in the control, 8.66±0.66, for spent engine oil at 4%, while for palm oil effluent it was 27.66±0.66, at 4%, concentration respectively. Stem girth at 2 weeks for spent engine oil was 0.19±0.05 at 2%, 0.43±0.03 for palm kernel oil effluent and at the 12th week of planting at 10% concentration was 1.63±0.08 for palm kernel oil effluent, and all plants had withered off for spent engine oil at same concentration at the 12th week. Also, spent engine oil at all concentrations delayed the germination of Helianthus annuus by 2days compared to control. Comparison analysis test showed that growth in untreated plants were significantly higher (p>0.05) than spent oil and palm kernel sludge treated plants. Similar result was observed for leaf number and stem girth which had higher mean value in palm kernel sludge and control compared to spent oil. Sunflower grown in 8% and 10% palm kernel sludge contaminated soil also flowered eight days earlier than control plants, while spent oil treated plant did not. The result shows that sunflower cannot tolerate high (4%, 6%, 8% and 10%) concentrations of spent engine oil in soil compared to palm oil effluent. Therefore, spent engine oil should be properly disposed because of its adverse effect on the growth and yield of sunflower.


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