Malaysian Palm Oil Board (MPOB)
Salah satu alat yang digunakan untukmencirikan minyak dan lemak ialah kromotograf gas. Makalah ini menghuraikan beberapa analisis minyak dan lemak yang melibatkan penggunaan kromotograf gas cecair.Keadaan operasi dan kromotograf yang terdapat untuk analisis yang sering dijalankan seperti komposisi asid lemak, trigliserida dan gliserida separa dalam minyak sawit dan minyak isirong sawit dijelaskan.
Ciri minyak isirong asli seperti Nilai lodin, Takat Lebur Gelincir, Asid Lemak dan Komposisi Trigliserida digunakan sebagai asas bagi pengenalan sampel yang tidak diketahui atau sampel yang disyaki tercemar oleh minyak tumbuhan lain. Nisbah. nilai iodin terhadap takat gelincir didapati amat berguna, tetapi pengesahan lanjut dilakukan daripada nisbah asid palmitik terhadap asid laurik/palmitik, dan daripada […]
Kandungan dan komposisi satu pecahan baki metil ester minyak isirong yang didapati dari sebuah kilang oleokimia telah dikaji dengan cara TLC, GC dan GC/MS. Bahan-bahan utama yang terkandung adalah ester dan gliserida (lebih kurang 95%) manakala bahan-bahan tak disaponifi terdiri daripada hidrokarbon, triterpene alkohol, beberapa sebatian polar dan sterol. Jumlah tak saponifi didapati lebih kurang […]
An acute moisturizing efficacy study was conducted by using MPOB’s palm-based cosmetic products namely Palmianis lotion with vitamin E, goat’s milk lotion and Whitening Lotion 1. A total of 13 volunteers were involved in the study. The skin hydration was measured several times at different intervals (30, 60, 90, 120 and 180 min) after a […]
The optimization of small scale refining for the Seed Crushers and Oil Processors’ Association (SCOPA) was studied. The performance of three types of bleaching earths, WACSupreme, Pure-Flo, SBE Gold and two types of degumming agents, phosphoric acid and water were compared. The samples used were crude palm kernel oil and its fractions. The effects of […]
MCTs adalah minyak vang kandungannva terdiri daripada asid kaprilik dan asid kaprik dengan sedikit kandungan asid kaproik dan laurik. Walaupun MCTs adalah minyak, ia lebih bersifat seperti karbohidrat dengan sumber tenaga sebagai kalori sebanyak 8.3kcal/g. MCTs bersifat cecair walaupun mengandungi sepenuhnya rantai tepu asid lemak. Ini menyebabkan ia sangat stabil kepada oksidasi. Lelemak laurik seperii […]
Palm stearin (POs), sunflower oil (SFO) and palm kernel olein (PKOo) were blended in various ratios and subjected to chemical interesterification (CIE). Fatty acid composition, triacylglycerol (TAG) composition, solid fat content (SFC) and polymorphic behaviour of the interesterified blends were analysed and compared with the properties of the unreacted blends. Upon CIE, extensive rearrangement of […]
Palm oil (PO) and palm olein with an iodine value of 60 (POo-I.V.60), were blended with sunflower oil (SFO) and palm kernel olein (PKOo) according to the conventional three-component mixture design. The effects of blending and chemical and enzymatic interesterification on the polymorphic behaviour of the ternary blends of PO/SFO/PKOo and POo-I.V. 60/ SFO / […]
A one year crude palm kernel oil survey was conducted from May 1998 to April 1999 to monitor the oil characteristics. Nineteen kernel crushers from all over Malaysia participated in the survey. The mean composition of the major fatty acids was as follows: lauric acid, 47.9%, mystric acid, 16.7%, palmitic acid, 8.5% and oleic acid, […]
Changes in the melting points of palm oil (PO), sunflower oil (SFO), palm kernel olein (PKOo) and their blends thereof before and after chemical interesterification (CIE) were studied by the dropping point (DP) method. PO and binary blends of PO/SFO at 3:1 ratio, PO/PKOo at all ratios and ternary blends of PO/SFO/PKOo at 4:1:1, 1:1:4 […]