Produkty
Virgin Coconut Oil and Coconut Nourish
- Study tested commercially available products
- Rich sources of lauric and myristic acids
- Male Wistar rats for 16 weeks were fed either
- Corn starch diet (C)
- High-carbohydrate,
- High-fat diet (H);
- High-carbohydrate,
- High-virgin coconut oil diet (HV);
- High-coconut Nourish diet (HN) [19]
- Metabolic, liver, and cardiovascular health parameters were measured during and at the end of the study
- Virgin coconut oil
- Lowered body weight (C 386±8g, H 516±13g, HV 459±10g)
- Blood glucose concentrations (C 4.2±0.1 mmol/L, H 5.4±0.2 mmol/L, HV 4.6±0.2 mmol/L),
- Systolic blood pressure (C 127±5mmHg, H 149±4mmHg, HV 133±3mmHg,)
- Diastolic stiffness (C 25.0±1.7, H 31.4±1.2, HV 25.2±2.3,)
- Improved structure and function of the heart and liver [19]
- Coconut Nourish
- Increased total body lean mass (C 255±10g, H 270±16g, HN 303±15g)
- Lowered plasma total cholesterol concentrations (C 1.6±0.2 mmol/L, H 1.7±0.1 mmol/L, HN 1.0±0.0 mmol/L)
- Systolic blood pressure (C 127±5mmHg, H 149±4mmHg, HN 130±3mmHg)
- Diastolic stiffness (C 25.0±1.7, H 31.4±1.2, HN 26.5±1.0)
- Improved structure and function of the heart and liver
- But increased plasma concentrations of triglycerides (C 0.3±0.1 mmol/L, H 1.1±0.4 mmol/L, HN 1.8±0.2 mmol/L)
- And non-esterified fatty acids (C 1.2±0.3 mmol/L, H 3.3±0.8 mmol/L, HN 5.6±0.4 mmol/L) [19]
Quality of VCO
- Appointed by Asian Pacific Coconut Community (APCC) standards
- Different types of raw materials, namely incubated and desiccated coconut meat, incubated coconut milk as well as freeze-thawed coconut milk affected physicochemical properties of VCO (Marina et al., 2009b) [30]
- no drastic differences in overall VCO quality were observed
- Physical and chemical qualities must comply with the Philippine standards for VCO and the Codex standard for coconut oil (Dia, Garcia, Mabesa, & Tecson-Mendoza, 2005) [30]
- Mansor et al. (2012) characterized VCO obtained from different methods including chilling, fermentation, fresh-drying, and enzyme treatment
- Various methods slightly affected the quality but the difference was not significant
- The FFA, peroxide, iodine, and saponification values [30]
- Reported for commercial VCO samples were in accordance with the specification guided by Codex standard (2003) for refined coconut oil.
- Senphan and Benjakul (2015) also stated that VCO extraction aided by Alcalase (10 unit/g protein) or crude protease extract (from the hepatopancreas of Pacific white shrimp) at 60 °C for 90 min had no influence on the resulting VCO quality. [30]
- Patil et al. (2016) studied characteristics as well as the quality of VCO as influenced by maturity stages. Maturity stages of coconut had no profound effect on oxidative stability and quality of VCO. [30]
Essential composition and quality parameters of virgin coconut oil (VCO) appointed by Asian Pacific Coconut Community (APCC)
- 1. Moisture (%) Max 0.1
- 2. Refractive index at 40°C 1.4480–1.4492
- 3. Relative density 0.915–0.920
- 4. Specific gravity at 30°C/30°C 0.915–0.920
- 5. Iodine value (g I2/100 g oil) 4.1–11
- 6. Saponification value (mg KOH/g oil) 250–260
- 7. Free fatty acid (%) Max 0.2
- 8. Peroxide value (meq O2/kg) Max 3 [30]
- Marina, Che Man, Nazimah, and Amin (2009a) reported the fatty acid composition of commercial VCO available in Malaysia and Indonesia
- Lauric acid (46% to 48%) was dominant fatty acid and the content
- Was within the standard limit for VCO according to Asian and Pacific Coconut Community (APCC, 2003) [30]
- And Malaysian Standard (2007)
- Lauric acid (with the range of 46.36% to 48.42%) was found in all VCO samples [30]
- VCO separated from coconut milk with three different maturity stages had a similar fatty acid composition (Patil et al., 2016) [30]
Cooconut Oleogel (CG) of cocconut oil (Co)
- Orange juice and rice porridge alone (control)
- Orange juice and rice porridge with 22.25 g of coconut oil (CO)
- Orange juice and rice porridge with 25 g of coconut oleogel (CG)
- 22.25 g coconut oil + 2.75 g ethylcellulose to form an oleogel was consumed - results after:
- CO
- Reduced the peak of the glucose response
- Increased the incremental area under the curve for postprandial triglycerides [29]
- CG
- Gelling of coconut oil with ethylcellulose into an oleogel form reversed its effects on postprandial glucose and triglycerides
- Results resembled controls [29]
Virgin coconut oil
- Purest form of coconut oil with natural characteristics coconut smell and taste
- At low temperature, VCO is solidified
- When liquefied, it becomes colorless like water (Marina et al., 2009c)
- Lauric acid is converted into a very valuable compound known as monolaurin
- Has antibacterial and antiviral properties (DebMandal & Mandal, 2011) [30]
- High stability
- Various health advantages (Carandang, 2008)
- VCO does not undergo any hydrolytic and atmospheric oxidation as confirmed by its low peroxide value as well as very low free fatty acid content (Marina et al., 2009c; Patil et al., 2016) [30]