scholarly journals Physicochemical and rheological characterizations of Cocos nucifera L. and Elaeis guineensis Jacq. (Arecaceae) oils for black hair shampoo formulation

2020 ◽  
Vol 14 (8) ◽  
pp. 2684-2698
Author(s):  
Awa Nakognon Tuo-Kouassi ◽  
Kakwokpo Clémence N’guessan-Gnaman ◽  
Marcel Koffi Konan ◽  
Sandrine Armelle Adjoua Aka-Any-Grah ◽  
Landry Claude Ahmont Kablan ◽  
...  

Black hair suffers from a lipid deficiency, either on the surface with a decrease in sebaceous secretion or in depth with a lack of covalent bonds between the lipids and the cuticular cells. The result is a porous cuticle, a dull, rough hair that is difficult to untangle and breaks easily. The aim of this study was to evaluate properties of oils extracted from Cocos nucifera and Elaeis guineensis intended for the formulation of shampoos for black hair. Physicochemical and rheological analyses were carried out. Both oils showed a refractive index of 1.45 and melting points of 28 °C and 30 °C for coconut oil and palm kernel oil, respectively. The relative densities, moisture contents, saponification indexes, peroxide values, unsaponifiable matter contents, para-anisidine values were relatively similar while iodine and acid values were different. Both oils are rich in lauric, oleic and linoleic acids. These oils exhibited a Newtonian behavior and a dominant elastic nature after their melting temperature in the study conditions. They could constitute active ingredients for the formulation of shampoo for black hair in view of their different characteristics.Keywords: Physico-chemical analyses, rheological parameters, Cocos nucifera oil, Elaeis guineensis oil.

2021 ◽  
Vol 882 ◽  
pp. 183-190
Author(s):  
Tran Thi Kim Ngan ◽  
Tran Thien Hien ◽  
Le Thi Hong Nhan ◽  
Xuan Tien Le

Today, the need for human care and beauty is increasing. The use of personal care products, especially those from nature, has been given special attention by consumers. With diverse features and good effects on the human body, especially the skin, coconut oil is being cared for by many manufacturers. With the aim of diversifying personal care products from coconut oil, this research has initially achieved positive results. Soap saponified as raw soap is considered to have good cleaning effect (better than sodium lauryl sulfate solution (SLS) when diluted to the same concentration). The combination of 10% crude soap and 4% sodium lauryl ether sulfate (SLES) surfactants formulate cleansing products with effective cleansing properties. Ingredients auxiliary cleaners, moisturizing, and softening, antioxidants are added with the appropriate content to improve the disadvantages of raw soap. The personal care products that have been studied have the potential to enter the cosmetic market and attract many consumers.


CORD ◽  
2005 ◽  
Vol 21 (01) ◽  
pp. 34 ◽  
Author(s):  
S. P. Singh ◽  
P. Rethinam

Several species of curculionid weevils such as Amerrhinus ynca Sahlberg, Cholus annulatus Linnaeus, C. martiniquensis Marshall, C. zonatus (Swederus), Diocalandra frumenti (Fabricius), Dynamis borassi Fabricius, Homalinotus coriaceus Gyllenhal, Metamasius hemipterus Linnaeus, Paramasius distortus (Gemminger & Horold), Rhabdoscelus obscurus (Boisduval), Rhinostomus barbirostris (Fabricius), R. afzelii (Gyllenhal), Rhynchophorus bilineatus (Montrouzier), R. cruentatus Fabricius, R. ferrugineus (Olivier), R. palmarum (Linnaeus) and R. phoenicis (Fabricius) are associated with palms. Some of these have become a major constraint in the successful cultivation of coconut palm (Cocos nucifera L.), date palm (Phoenix dactylifera L.) and oil palm (Elaeis guineensis L.). R. ferrugineus is distributed in over 33 countries and attacks more than two dozen palm species. In the recent past, it has spread to Middle Eastern countries, Mediterranean region of Africa and southern Europe (Spain) causing tremendous economic losses. The yield of date palm has decreased from 10 to 0.7 tons/ha. Coconut palms in India are infested upto 6.9 per cent in Kerala and 11.65 per cent in Tamil Nadu. R. palmarum is a major pest of oil and coconut palms in the tropical Americas and, vectors the nematode, Bursaphelenchus cocophilus (Cobb) Baujard which causes red ring disease (RRD). Palm losses due to RRD are commonly between 0.1 to 15% which amounts to tens of millions dollars. The status of other species is briefed. The grubs of weevils that develop in the stems, bud, rachis of leaves and inflorescence of cultivated, ornamental or wild palms cause direct damage. Because of the cryptic habitat of the grubs, which act as tissue borer, the management becomes difficult.


CORD ◽  
2021 ◽  
Vol 37 ◽  
pp. 1-10
Author(s):  
Dilani Hewa Pathirana ◽  
Chandi Yalegama ◽  
Darshana Jayawardhana Arachige ◽  
Malki Senarathne

Virgin coconut oil (VCO) is a superior edible oil extracted from fresh coconut (Cocos nucifera L) kernel using mixed coconut varieties without considering the varietal effect. Therefore, this research focuses on the quality evaluation of VCO extracted from four types of coconut varieties, namely Sri lanka Tall×Tall (TT), a tall variety of Gon Thambili (GT), a tall variety of Ran Thambili (RT) and Philippines tall variety of San Ramon (SR). Mature coconuts from each variety were collected from the Bandirippuwa Estate of the Coconut Research Institute, Sri Lanka to extract VCO by cold press oil extraction method. The extractability of VCO from different varieties was investigated. Moisture, free fatty acid (FFA), fatty acid profile (gas chromatography), peroxide value (PV), color (Lovibond scale), total phenolic substances (Galic acid equivalent), antioxidant capacity (α,α-diphenyl-β-picrylhydrazyl, 0.1mM – DPPH method) and sun protection factor (SPF) of VCO extracted from each variety were analyzed. The experiment was conducted as a completely randomized design with three replicates. Data were analyzed using ANOVA using Tukey’s test by MINITAB 17. Oil extractability (58%-59%), FFA (0.04%-0.12%), color (0.43–0.93) and fatty acid profile of VCO did not show variation among varieties. A higher concentration of total phenolic substances was observed in GT (0.24±0.03mg GAE/100g) while antioxidant capacity (857.19±14.99mg/ml) and SPF (8.99±1.26) was rich in RT.


2020 ◽  
Vol 4 (1) ◽  
pp. 38
Author(s):  
Elfia Siska Yasa Putri

Virgin Coconut Oil (VCO) merupakan produk olahan dari buah kelapa (Cocos nucifera L). Pada kegiatan pengabdian ini tim pengabdian mengajarkan pembuatan VCO melalui cara enzimatis dengan memanfaatkan buah nanas (Ananas comosus) yang banyak tumbuh di  Kampung Kekupu, Depok. Kegiatan ini dilakukan untuk (1) meningkakan pengetahuan mitra tentang VCO (2) mengajarkan cara pembuatan dan pengemasan VCO sehingga mitra bisa secara mandiri untuk memproduksi VCO. Dengan demikian, mitra dapat membantu penghasilan keluarga. Pada tahap pembuatan VCO ini, enzim bromelin dari buah nanas yang dicampur dengan krim kelapa. Setelah itu VCO yang terbentuk diambil menggunakan sendok sayur dan dikemas dalam wadah yang aman. Untuk menunjang kegiatan ini maka mitra diberikan buku saku panduan pembuatan VCO menggunakan enzim bromelin. Penyuluhan  tentang kandungan zat-zat kimia yang  yang terdapat pada buah kelapa , buah nenas, dan VCO serta  manfaat dan keunggulan VCO diberikan oleh narasumber. Setelah kegiatan ini, 86,7 % peserta berpendapat bahwa materi pelatihan mudah dipahami. Sebanyak 93,3 % peserta memperoleh banyak manfaat dari acara ini.


2019 ◽  
Vol 8 (1) ◽  
pp. 11-17
Author(s):  
Rosdanelli Hasibuan ◽  
Fransiska Adventi ◽  
Rahmad Parsaulian Rtg

Soap is a cleanser made by chemical reactions between sodium hydroxide or potassium hydroxide with fatty acids from vegetable oils or animal fats. Soaps can be made by several methods, namely saponification and neutralization methods, in this study carried out by saponification method. In the saponification method there are several problems namely operating conditions which include reaction temperature, stirring speed and stirring time. Therefore, need to do research to determine the best conditions of saponification reaction, namely reaction speed, operating temperature and reaction time using an impeller type multiple pitch blade turbine with research variables reaction temperature 60 oC, 70 oC, and 80 oC, stirring speed 300 rpm,400 rpm and 500 rpm and reaction time of 45minutes, 60 minutes, and 75 minutes. Saponification reaction is carried out by heating coconut oil and inserting 30% NaOH slowly and then stirring with a multiple pitch blade stirrer. The product will be analyzed by testing alkaline levels, moisture content and pH of the soap. The best operating conditions obtained from this study were at a temperature of 70 oC, reaction time of 60 minutes, stirring speed of 400 rpm with a pH value of 9.4 and an alkaline level of 0.073 and a moisture content of 9.8.


Author(s):  
Okenwa-ani Chioma ◽  
Okafor Alexander ◽  
Kanayochukwu Ugochi ◽  
Anieze Erasmus ◽  
Egbujor Melford ◽  
...  

Aims: To extract and characterize oils from Glycine max L. (soya bean seed), Elaeis guineensis (palm kernel seed) and Cocos nucifera (coconut) using ethanol and n-Hexane. Place and Duration of Study: Department of Industrial Chemistry, Renaissance University, Ugbawka, between December 2017 and July 2018. Methodology: Using Soxhlet extraction method, the milled seed samples (soya bean, coconut and palm kernel) were bagged and extracted with accurately measured quantity of each solvent (n-Hexane and Ethanol). Physicochemical analysis which includes: Acid values, iodine value, free fatty acid (% oleic) and saponification value was carried out on the extracted oil. Results: The percentage oil yield from ethanol extracts were 8.58% (8.58 g), 26.01% (26.01 g) and 31.21% (31.21 g) for soya bean, coconut and palm kernel respectively while that of n-Hexane extracts were 14.69% (14.69 g), 31.85% (31.85 g) and 45.28% (45.28 g), due to the fact that 100 g of the milled sample was used. Free fatty acid values were the same in n-Hexane and ethanol extracts of soya bean oil. These values were slightly higher in the coconut and palm kernel oil extracts using ethanol. Acid values were observed to be slightly higher in the ethanol extracted oils. The Saponification values were generally higher in ethanol extracted oils than in hexane extracted oils. There was maximum oil recovered with hexane than ethanol when the extraction process was carried out for 120 minutes. Conclusion: In spite of the fact that n-Hexane gave a better extraction yield, ethanol appeared to be a better alternative for the extraction process because it is green, less toxic and safer to handle.


2019 ◽  
Vol 4 (1) ◽  
pp. 8
Author(s):  
Rudi Hartawan ◽  
Fathul Hariadi

Polikultur tanaman Kelapa Dalam dan Kelapa Sawit dengan tanaman Pinang merupakan salah satu alternatif untuk meningkatkan produktivitas lahan dan meningkatkan pendapatan petani. Penelitian bertujuan untuk membandingkan NKL polikultur Pinang dengan Kelapa Dalam dan Pinang dengan Kelapa Sawit. Pelaksanaan penelitian di Desa Sungai Beras, Kecamatan Mendahara Ulu, Kabupaten Tanjung Jabung Timur pada bulan Desember 2018 sampai Maret 2019. Pengumpulan data mengunakan metode survey pada lahan-lahan petani yang ditanami Pinang, Kelapa Dalam, dan Kelapa Sawit monokultur dan polikultur. Lokasi penelitian di pilih secara sengaja karena pada lokasi-lokasi tersebut terdapat budidaya polikultur Pinang dengan Kelapa Dalam dan Pinang dengan Kelapa Sawit. Peubah yang diamati yaitu; fisik tanaman dan umur berbuah, estimasi produksi (kg ha-1), produktivitas (kg ha-1 th-1). Data yang diperoleh di lapangan dilakukan analisis statistika dengan metode deskriptif dalam bentuk tabulasi dan analisis inferensi dengan uji t berpasangan dengan taraf α 0,05%. Dari hasil penghitungan nilai NKL diperoleh nilai polikultur Pinang dengan Kelapa Dalam 1,19 dan polikultur Pinang dengan Kelapa Sawit 1,10. Data ini mengambarkan bahwa polikultur Pinang dengan Kelapa Dalam lebih menguntungkan 9% dibandingkan polikultur Pinang dengan Kelapa Sawit.


2019 ◽  
pp. 1-10
Author(s):  
Joel Ndife ◽  
Deborah Obot ◽  
Kuyik Abasiekong

Background: Despite the health benefits of coconut oil and its potential for economic development, the availability remain scarce and the cost very high. This is mainly due to poor extraction methods that in turn affect the yield and quality. Aims: To produce coconut oil using different extraction protocols and to compare the quality of the different oil samples. Study Design: The experimental set-up was of a completely randomized design. Place and Duration of Study: Department of Food Science and Technology, Michael Okpara University of Agriculture, Umudike, Nigeria, between August and October 2018. Methodology: Coconut oils produced by natural fermentation, centrifugation, freeze-thaw and solvent extraction protocols were analyzed for physical, chemical, sensory, microbial sensory properties. Results: The solvent extracted oil had the highest oil yield (23.12%) whereas fermentation oil, the lowest (14.19%). The smoke and fire points had 173.75 -176.60°C and 262.45 - 266.65°C respectively. Solvent oil had the highest saponification (261.33 mgKOH/g) and acid values (0.77 mgKOH/g). The oils generally contained more lauric (46.22-48.16%) and myristic (18.03-19.83%) acids. They were also richer in vitamins A (6.22-18.65 ug/g) and E (2.92-4.28 mg/100 g) than D and K. Fermentation oil had the highest microbial count (12.93×02 cfu/ml) whereas solvent oil had the lowest (5.05×02 cfu/ml). Conclusion: The methods used for the coconut oil extraction had significant impact on the quality of the oils. The highest oil yield was the centrifugation oil obtained from Centrifugation Method. The physico-chemical properties and fatty acid compositions of the coconut oils were comparable to international standards. Coconut oil extracted by freezing and thawing was the most preferred in sensory attributes.


2016 ◽  
Vol 18 ◽  
pp. 132-140 ◽  
Author(s):  
Febri Odel Nitbani ◽  
Jumina ◽  
Dwi Siswanta ◽  
Eti Nurwening Solikhah

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