Quality Control of Virgin Coconut Oil

Virgin coconut oil (VCO) is the purest and finest grade of coconut oil it has hundreds of medicinal benefits and is used in many cosmetic and food preparations.


1. Improve immunity against bacteria,parasites, viruses, fungus and other pathogens. Cause from Coconut oil is naturally rich in lauric acid, which is alsofound in high levels in breast milk.

2. VCO also helps to increase the body’s metabolic rate which can aid in weight loss and assists diabetics in regulating sugar.

3.Aids in fat soluble vitamin absorption and can help speed up healing from bruises, burns, cuts and can improve dry hair condition, helps relieve sore throat, toothaches and cracked lips.

Production Process

VCO is produced using the cold process; as such no heat is applied during extraction. This preserves the lauric acid and the medium chain triglycerides content of the oil. VCO is extracted from mature coconuts without the use of any other chemical

Color Appearance

VCO is pure, hence it is transparent and almost water like in color. It also has a sweet coconut smell to it. Regular coconut oil on the other hand is yellowish in color. Although VCO and regular coconut oil are slightly different, this difference cannot be made with the naked eye. This differentiation is largely due to the presence of certain colloidal particles and moisture within it.

Ideally, VCO should be clear as water. However, its color may change slightly depending on its manufacturing process.

Cuvette in the transmittance chamber

Quality Control

To test and quantify the clarity of the VCO, thetransmitted color of the VCO can be determined by using a spectrophotometer that comes with atransmittance chamber. One such spectrophotometeris the CM-5 which can be used as a stand-alone model.

Calibration of the CM-5 is required, prior to any transmittance measurements. For 0% calibration, the zero calibration plate that comes with the instrument must be used and for 100% clear calibration, it uses a 10mm light path cuvette filled with pure distilled water. Steps would be shown on the CM-5 screen to guide users through the calibration process. After which, the 10mm light path cuvette can be filled with the VCO samples and placed into the transmittance chamber of the CM-5 using the necessary cell holder for measurements.

An instrument setting of D65 illuminant and a standard observer of 10° is recommended for the measurements. Measurements of the production batches can then be compared to the reference VCO.

Below is a general guide on when to accept or reject a sample VCO. Do note that this is only a guide and the final acceptance data value still depends on individual producers and market preferences.

For more information on the Spectrophotometer CM-5 and the SpectraMagic NX Pro Software, kindly visit the following web sites for more information.

Make an appointment for product demonstration and get free consultation
about Spectrophotometer CM-5 and the SpectraMagic NX Pro Software.

Konica Minolta Business Solutions (Thailand) Co., Ltd.
(Sensing Business)

Tel: 02-029-7000 Ext.1400, 1402
Email: sth@konicaminolta.com