scholarly journals Alterations of palm oil (Elaeis guineensis) in the continuous industrial par frying of breaded chicken snacks

2014 ◽  
Vol 34 (1) ◽  
pp. 32-37 ◽  
Author(s):  
Débora Rezende Ferreira ◽  
Adelaide Del Pino Beléia ◽  
Rui Sérgio dos Santos Ferreira da Silva
Keyword(s):  
Palm Oil ◽  
2013 ◽  
Vol 141 (1) ◽  
pp. 245-252 ◽  
Author(s):  
Massimo Mozzon ◽  
Deborah Pacetti ◽  
Paolo Lucci ◽  
Michele Balzano ◽  
Natale Giuseppe Frega

1994 ◽  
Vol 15 (2) ◽  
pp. 1-8 ◽  
Author(s):  
Choo Yuen May

Crude palm oil is the richest natural plant source of carotenoids in terms of retinol (provitamin A) equivalent. This article reports on » the carotenoids found in palm oil, its fractions, byproducts, and derivatives from the Elaeis guineensis and E. oleifera palms, including their hybrids and a back-cross, as well as the carotenoids of pressed palm fibres, second-pressed oil, palm leaves, and palm-derived alkyl esters; » two novel procedures for preparing highly concentrated sources of carotenoids (>80,000 ppm), by recovery by palm alkyl esters, and by retention and concentration in deacidified and deodorized red palm oil; » the carotenoid content and profiles of the above sources obtained by high-performance liquid chromatography; and » nutritional effects of palm oil carotenoids and their potential applications for health promotion and disease prevention.


2017 ◽  
Vol 13 (01) ◽  
Author(s):  
Silvio Alex Pereira Mota ◽  
Andréia De Andrade Mancio ◽  
Luiz Eduardo Pizarro Borges ◽  
Nélio Teixeira Machado

2016 ◽  
Vol 1 (2) ◽  
pp. 55
Author(s):  
Nasamsir Nasamsir ◽  
Mei Indrayadi

AbstractThis research aims to know the physical characteristics and the palm oil production on a variety of land suitability. Randomized block design by survey method was used in this research that had been carried out in society’s enterprise. The research object was the palm oil crop cultivated in the lowlands (0-100 m above sea level), moderate land (100-500 m above sea level), and the highland (>500 m above sea level). The plant wich is taken as a sample is a plant which was 10 years old (already production). The villages in the survey, set in accordance with the height. The observed variables in this study i.e.; the circumference of the trunk, tall trunk, leaf stem length, color and thickness of the leaf, heavy of fresh fruit bunches, the age of starting production, production and productivity. Other observed data is temperature and soil acidity. To see the difference between production and productivity of palm oil on three ecology types of land, observed data were analyzed using analisys of varians that followed by Duncan test (α = 5%). The land suitability has significant on physical characteristics and palm oil production. Palm oil production in moderate land was significantly higher than those in both the high and lowland. Keywords; crop production, physical characteristics, land suitability, palm oil. AbstrakPenelitian ini bertujuan untuk mengetahui karakteristik fisik dan produksi kelapa sawit (Elaeis guineensis Jacq) pada berbagai agroekologi lahan. Percobaan dirancang menggunakan Rancangan Acak Kelompok (RAK), dilakukan di kebun rakyat dengan metode survey. Objek yang diteliti adalah tanaman kelapa Sawit yang dibudidayakan di dataran rendah (0-100 m dpl), dataran sedang (100-500 m dpl_, dan dataran tinggi (>500 m dpl). Tanaman yang diambil sebagai sampel adalah tanaman yang berumur 10 tahun (telah berproduksi). Desa-desa yang di survey, ditetapkan sesuai dengan ketinggian tempat. Peubah yang diamati dalam penelitian ini yaitu ; lingkar batang, tinggi batang, panjang pelepah, warna dan ketebalan daun, berat tandan buah segar, umur mulai berproduksi, produksi dan produktivitas, serta tindakan agronomi. Data lain yang diamati adalah suhu dan kemasaman tanah. Untuk melihat perbedaan produksi dan produktivitas kelapa sawit pada tiga jenis agroekologi lahan, data hasil pengamatan lapangan dianalisis menggunakan analisis ragam yang dilanjutkan dengan uji Duncan dengan α 5%. Agroekologi lahan berpengaruh nyata terhadap karakteristik fisik dan produksi kelapa sawit. Produksi tanaman kelapa sawit di daerah dataran sedang lebih tinggi dan berbeda nyata dengan produksi tanaman kelapa sawit daerah dataran tinggi dan daerah dataran rendah. Kata Kunci ; produksi tanaman, karakteristik fisik, kesesuaian lahan, kelapa sawit


2018 ◽  
Vol 4 ◽  
pp. 40-50 ◽  
Author(s):  
Enyoh Christian Ebere ◽  
Verla Andrew Wirnkor ◽  
Enyoh Emmanuel Chinedu ◽  
Verla Evelyn Ngozi

Over 70 % inhabitants of Imo state pend on palm oil for their cooking, frying etc. The study reviews available data on palm oil quality produced locally in Imo state with a view of providing up-to-date information and identify research gaps that could have health consequences on consumers. Peer reviewed scientific articles were reviewed and a meta-analysis of four different scientific research databases, PubMed, Web of Science, Google Scholar and Directory for Open-Access Journals was conducted. The result showed that palm oil produced locally in Imo state has average of pH (4.73), acid value (28.3 mg/KOH), FFA (14.15 mg/KOH), smoke point (115°C), iodine value (1.68 wijj’s), saponification value (197.07 mgKOH/g), ester value (168.77), moisture content (0.44 %), density (0.89 g/ml), SG (0.91), peroxide value (17.75 mEq./kg), refractive index (1.46oBx) and viscocity (60.04 cps). Overall palm oil is highly degraded and of poor quality since major quality indicators are not within Nigerian Industrial Standard and Standard Organization of Nigeria. Also, there is a dearth of information/data available on quality of palm oil produced locally in Imo state especially on its microbial status. Food scientist should look in that direction to enhance proper understanding of the quality of palm oil.


2015 ◽  
Vol 8 (2) ◽  
pp. 130-134 ◽  
Author(s):  
Ruy Guilherme Correia ◽  
Antonio Cesar Silva Lima ◽  
Antonio Carlos Centeno Cordeiro ◽  
Francisco Clemilto Da Silva Maciel ◽  
Walmer Bruno Rocha Martins ◽  
...  

Esta pesquisa teve como objetivo avaliar a flutuação populacional de Rhynchophorus palmarum L. (Coleoptera: Curculionidae) em plantios de Elaeis guineensis Jacq, em ecossistemas de savana e floresta no estado de Roraima. A pesquisa foi desenvolvida durante o período de janeiro de 2011 a fevereiro de 2012 nos campos experimentais da Embrapa Roraima: Monte Cristo e Caroebe, numa área de 2 hectares com a cultura da Palma de Óleo, em cada campo. Foram distribuídas armadilhas iscadas com roletes de cana-de-açúcar e feromônio de agregação para captura dos insetos no entorno dos plantios. Ocorreu flutuação de R. palmarum com picos populacionais nos meses de julho e agosto no ecossistema de savana e de abril a setembro no ambiente de floresta. A população de R. palmarum foi menor em meses de baixa precipitação pluviométrica nos dois ambientes avaliados com a Palma de Óleo em RoraimaPopulation Fluctuation of Rhynchophorus  palmarum  L.  (Coleoptera: Curculionidae) in Plantations of Oil Palm in RoraimaAbstract. This research aimed to evaluate the population fluctuation Rhynchophorus palmarum L. (Coleoptera: Curculionidae) in Elaeis guineensis Jacq plantations in forest and savanna ecosystems in the state of Roraima. The research was conducted during the period from January 2011 to February 2012 in the experimental field of Embrapa Roraima: Monte Cristo and Caroebe in an area of 2 hectares with culture Oil Palm in each field. Traps baited with rollers cane sugar and aggregation pheromone for capturing insects in the vicinity of the plantations were distributed. Fluctuation occurred R. palmarum with population peaks in the months of July and August in the savanna ecosystem and from April to September in the forest environment. The population of R. palmarum was lower in months of low rainfall in the two environments assessed with a palm-oil-in Roraima.


2019 ◽  
Vol 70 (2) ◽  
pp. 305
Author(s):  
S. Feitosa ◽  
E. F. Boffo ◽  
C. S.C. Batista ◽  
J. Velasco ◽  
C. S. Silva ◽  
...  

The objective of this study was to evaluate the physicochemical changes in crude palm oil during a real case of deep-frying of akara, cowpea-paste balls, fried and sold in the streets of Brazil. Discontinuous frying over five consecutive days, using 5-h frying a day, was performed according to traditional practices. The formation of polar compounds was evaluated by the IUPAC official method and by quick tests based on measures of physical properties, Testo 270 and Fri-check. In addition, 1H-NMR spectroscopy was applied to evaluate physicochemical changes. The results showed that after 15-h frying the total content of polar compounds (TPC) exceeded the limit of 25% established in most of the recommendations and regulations on heated oils. Such a level was reached quickly due to the high content of hydrolytic compounds present in the fresh oil and to the inappropriate use of blends of fresh and used oil in the oil replenishment. The two quick tests presented significantly lower values for TPC than the official method, probably due to the elevated hydrolysis of the fresh oil. In contrast, 1H-NMR results exhibited changes in the fatty acid composition which were similar to those provided by the common GC analysis. The use of crude palm oils of better initial quality and replenishment with fresh oil only are recommended to improve the quality of the oil absorbed by akara.


Author(s):  
Ihwan Rahmadi

Palm oil palm is one of the solid waste produced by oil palm plantations every harvest. Chemical analysis of palm oil palm oil pellets showed that there are components of cellulose, hemiscellulose, and lignin that show that palm oil pellets have the opportunity to be further processed into useful and economically valuable products. Palm waste contains cellulose by 34.89%, hemiscellulose by 27.14%, and lignin by 19.87%. The analysis conducted on raw materials includes the analysis of water content and cellulose levels of palm oil palm oil. 46.6% and cellulose levels of 29.2%. In this study quantitative analysis was conducted in the form of cellulose conversion and oxalic acid yield. The largest cellulose conversion was obtained at the use of 70% nitric acid concentration and 80 minutes reaction time of 58.56%.


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