DOI : https://doi.org/10.18517/ijaseit.14.2.19358

Lipid Quality Assessment of Virgin Coconut Oil Produced with Different Blanching Methods

Sulkhan Windrayahya (1), Marsha Rosalind Arminta (2), Velin Christabel Laureen (3), Hanny Angrainy (4)
(1) Department of Food Technology, Indonesia International Institute for Life Sciences, Jl. Pulomas Barat Kav. 88, Jakarta, Indonesia
(2) Department of Food Technology, Indonesia International Institute for Life Sciences, Jl. Pulomas Barat Kav. 88, Jakarta, Indonesia
(3) Department of Food Technology, Indonesia International Institute for Life Sciences, Jl. Pulomas Barat Kav. 88, Jakarta, Indonesia
(4) Department of Food Technology, Indonesia International Institute for Life Sciences, Jl. Pulomas Barat Kav. 88, Jakarta, Indonesia
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How to cite (IJASEIT) :
Windrayahya, Sulkhan, et al. “Lipid Quality Assessment of Virgin Coconut Oil Produced With Different Blanching Methods”. International Journal on Advanced Science, Engineering and Information Technology, vol. 14, no. 2, Apr. 2024, pp. 786-91, doi:10.18517/ijaseit.14.2.19358.
Citation Format :
Virgin Coconut Oil (VCO) is prone to oxidation due to the natural enzymes present in the coconut. Blanching has been studied to inactivate lipase and peroxidase enzymes that create deterioration in the product. Adding citric acid in hot water during blanching resulted in a higher quality product due to complexing agent properties to chelate metal substances and lowering the pH to reduce the enzymatic activities of the products. This research aims to analyze the effect of different blanching methods on VCO's lipid quality, antioxidant properties, and total phenolic content. Fresh coconut was subjected to water blanching at 95ºC for 5 minutes and 80ºC for 10 minutes with and without 0.05% citric acid addition. After that, VCO was produced using the chilling thawing method, which combines centrifugation and low-temperature incubation. VCO was analyzed in the free fatty acid (FFA), iodine value (IV), peroxide value (PV), TBARS value, the antioxidant activities by ABTS and DPPH, and total phenolic content (TPC). The results showed that water blanching with 0.05% citric acid at 80ºC for 10 minutes obtained better lipid quality compared to control with high IV (6.612±0.085 g iodine/g sample), low FFA (0.0241±0.0023 mg KOH/g sample), and low TBARS value (2.76±0.23 mg MDA/g sample). However, there is a contrary result between antioxidant activities and TPC that might reveal exciting findings. Despite a decrease in the antioxidant activities (DPPH: 39.93±3.11%RSA, ABTS: 9.80±0.91%RSA), the TPC value was increased (9.16±1.56 mg GAE/g sample). Therefore, hot water blanching with 0.05% citric acid addition can be conducted as a pre-treatment in the production of VCO to maintain the lipid quality, even though there is a contradiction in the TPC and antioxidant results.

D. R. W. Mudiyanselage and I. Wickramasinghe, “Comparison of physicochemical characteristics of virgin coconut oils from traditional and hybrid coconut varieties,” J Agric Food Res, vol. 12, pp. 1–7, Jun. 2023, doi: 10.1016/j.jafr.2023.100554.

R. da Silva Lima and J. M. Block, “Coconut oil: what do we really know about it so far?,” Food Qual Saf, vol. 3, pp. 1–12, Jun. 2019, doi: 10.1093/fqsafe/fyz004.

S. A. Bisong, C. O. Nku, O. A. Sanya, S. O. Ita, V. A. Fischer, and F. E. Abuo, “Long-term consumption of virgin coconut (Cocos nucifera) oil diet impairs learning and memory in CD1 mice,” Chin Herb Med, vol. 12, no. 4, pp. 414–420, Oct. 2020, doi: 10.1016/j.chmed.2020.03.008.

M. H. A. de Vasconcelos et al., “Extra virgin coconut oil (Cocos nucifera L.) exerts anti-obesity effect by modulating adiposity and improves hepatic lipid metabolism, leptin and insulin resistance in diet-induced obese rats,” J Funct Foods, vol. 94, pp. 1–11, Jul. 2022, doi: 10.1016/j.jff.2022.105122.

A. Rohman et al., “Virgin Coconut Oil: Extraction, Physicochemical Properties, Biological Activities and Its Authentication Analysis,” Food Reviews International, vol. 37, no. 1. Bellwether Publishing, Ltd., pp. 46–66, 2021. doi: 10.1080/87559129.2019.1687515.

Y. J. Ng, P. E. Tham, K. S. Khoo, C. K. Cheng, K. W. Chew, and P. L. Show, “A comprehensive review on the techniques for coconut oil extraction and its application,” Bioprocess and Biosystems Engineering, vol. 44, no. 9. Springer Science and Business Media Deutschland GmbH, pp. 1807–1818, Sep. 01, 2021. doi: 10.1007/s00449-021-02577-9.

Y. J. Ng, P. E. Tham, K. S. Khoo, C. K. Cheng, K. W. Chew, and P. L. Show, “A comprehensive review on the techniques for coconut oil extraction and its application,” Bioprocess Biosyst Eng, vol. 44, no. 9, pp. 1807–1818, Sep. 2021, doi: 10.1007/s00449-021-02577-9.

T. Kulandasamy, S. K. Rao, and W. Farzana, “Microencapsulation of enzymatically destabilized virgin coconut oil by spray drying technique: Optimization of process parameters, quality assessment and studies on physico-chemical characteristics of microcapsule,” Food and Humanity, vol. 1, pp. 650–661, Dec. 2023, doi: 10.1016/j.foohum.2023.07.003.

N. K. Mohammed, Z. T. Samir, M. A. Jassim, and S. K. Saeed, “Effect of different extraction methods on physicochemical properties, antioxidant activity, of virgin coconut oil,” in Materials Today: Proceedings, Elsevier Ltd, 2021, pp. 2000–2005. doi: 10.1016/j.matpr.2020.12.248.

A. Y. Tadesse, H. H. Mohammed, and K. N. Andersa, “Proximate composition and selected phytochemical component of Dawrach (Raphanus raphanistrum L.) as affected by blanching temperature,” Heliyon, vol. 9, no. 8, Aug. 2023, doi: 10.1016/j.heliyon.2023.e19240.

A. O. Adetoro, U. L. Opara, and O. A. Fawole, “Effect of blanching on enzyme inactivation, physicochemical attributes and antioxidant capacity of hot-air dried pomegranate (Punica granatum l.) arils (cv. wonderful),” Processes, vol. 9, no. 1, pp. 1–18, Jan. 2021, doi: 10.3390/pr9010025.

B. Naik, V. Kumar, and A. K. Gupta, “Valorization of tender coconut mesocarp for the formulation of ready-to-eat dairy-based dessert (Kheer): Utilization of industrial by-product,” J Agric Food Res, vol. 12, Jun. 2023, doi: 10.1016/j.jafr.2023.100572.

D. Pujimulyani, S. Windrayahya, and I. Irnawati, “The effects of media and blanching time on the antioxidative properties of Curcuma aeruginosa Roxb,” Indonesian Journal of Pharmacy, vol. 32, no. 2, pp. 244–250, 2022, doi: 10.22146/ijp.3634.

R. Siti Rashima, W. L. Ong, Z. Aina Nadiah, and M. Maizura, “Effects of acidified blanching water and pectinase enzyme pretreatments on physicochemical properties and antioxidant capacity of Carica papaya juice,” J Food Sci, vol. 87, no. 4, pp. 1684–1695, Apr. 2022, doi: 10.1111/1750-3841.16097.

F. Richter Reis, “Blanching in the food industry,” in Thermal Processing of Food Products by Steam and Hot Water, S. M. Jafari, Ed., Woodhead Publishing, 2023, pp. 211–246. doi: https://doi.org/10.1016/B978-0-12-818616-9.00007-9.

V. Y. Waisundara, C. O. Perera, and P. J. Barlow, “Effect of different pre-treatments of fresh coconut kernels on some of the quality attributes of the coconut milk extracted,” Food Chem, vol. 101, no. 2, pp. 771–777, 2007, doi: 10.1016/j.foodchem.2006.02.032.

D. Pujimulyani, S. Raharjo, Y. Marsono, and U. Santoso, “Pengaruh blanching terhadap aktivitas antioksidan, kadar fenol, flavonoid, dan tanin terkondensasi kunir putih (Curcuma mangga Val.),” Agritech, vol. 30, no. 3, pp. 141–147, 2010, doi: https://doi.org/10.22146/agritech.9665.

S. N. Raghavendra and K. S. M. S. Raghavarao, “Effect of different treatments for the destabilization of coconut milk emulsion,” J Food Eng, vol. 97, no. 3, pp. 341–347, Apr. 2010, doi: 10.1016/j.jfoodeng.2009.10.027.

Y. Sahari, M. S. Anuar, M. Z. Mohd Nor, and N. H. Abdul Ghani, “Characterization of single and hybrid mode drying of desiccated coconut,” J Food Eng, vol. 357, p. 111628, 2023, doi: https://doi.org/10.1016/j.jfoodeng.2023.111628.

A. Samanta et al., “Wijs, Potassium Iodate, and AOCS Official Method to Determine the Iodine Value (IV) of Fat and Oil,” Biomedical and Pharmacology Journal, vol. 16, no. 2, pp. 1201–1210, Jun. 2023, doi: 10.13005/bpj/2700.

H. T. Olaleye, T. O. Oresanya, and B. Z. Bello, “Physicochemical, Textural, Rheological and Sensory Properties of Chia Seed-Cashew Nut Spread,” Journal of Culinary Science and Technology, 2021, doi: 10.1080/15428052.2021.1929635.

W. Wang, D. J. Smith, H. Ngo, Z. T. Jin, A. E. Mitchell, and X. Fan, “Lipid Oxidation and Volatile Compounds of Almonds as Affected by Gaseous Chlorine Dioxide Treatment to Reduce Salmonella Populations,” J Agric Food Chem, vol. 71, no. 13, pp. 5345–5357, Apr. 2023, doi: 10.1021/acs.jafc.3c00267.

A. El Jery, M. Hasan, M. M. Rashid, M. K. Al Mesfer, M. Danish, and F. Ben Rebah, “Phytochemical characterization, and antioxidant and antimicrobial activities of essential oil from leaves of the common sage Salvia officinalis L. From Abha, Saudi Arabia,” Asian Biomedicine, vol. 14, no. 6, pp. 261–270, Dec. 2020, doi: 10.1515/abm-2020-0035.

A. N. Agyare, C. H. An, and Q. Liang, “Goji Berry (Lycium Barbarum L.) Carotenoids Enrichment through ‘Green’ Extraction Method Improves Oxidative Stability and Maintains Fatty Acids of Yak Ghee with Microwave Heating and Storage,” Foods, vol. 11, no. 3, Feb. 2022, doi: 10.3390/foods11030369.

H. E. A. de Barros et al., “Development of the dairy products incorporated with co-product bioactive compounds-rich as an alternative ingredient in the food industry,” J Food Sci Technol, vol. 60, no. 7, pp. 1981–1991, Jul. 2023, doi: 10.1007/s13197-023-05732-0.

W. S. M. Qadi, A. Mediani, K. Benchoula, E. H. Wong, N. M. Misnan, and N. A. Sani, “Characterization of Physicochemical, Biological, and Chemical Changes Associated with Coconut Milk Fermentation and Correlation Revealed by 1H NMR-Based Metabolomics,” Foods, vol. 12, no. 10, May 2023, doi: 10.3390/foods12101971.

L. Wang, L. Wang, J. Qiu, and Z. Li, “Effects of superheated steam processing on common buckwheat grains: Lipase inactivation and its association with lipidomics profile during storage,” J Cereal Sci, vol. 95, Sep. 2020, doi: 10.1016/j.jcs.2020.103057.

J. K. C. Nduka, P. O. Omozuwa, and O. E. Imanah, “Effect of heating time on the physicochemical properties of selected vegetable oils,” Arabian Journal of Chemistry, vol. 14, no. 4, Apr. 2021, doi: 10.1016/j.arabjc.2021.103063.

H. A. Kamble, A. A. Gatade, A. K. Sahoo, and U. S. Annapure, “Effect of blanching treatment on antioxidant activity and color values of sugarcane juice,” in Materials Today: Proceedings, Elsevier Ltd, 2021, pp. 5663–5667. doi: 10.1016/j.matpr.2021.03.706.

M. D. Erickson, D. P. Yevtushenko, and Z.-X. Lu, “Oxidation and Thermal Degradation of Oil during Frying: A Review of Natural Antioxidant Use,” Food Reviews International, vol. 39, no. 7, pp. 4665–4696, Aug. 2023, doi: 10.1080/87559129.2022.2039689.

Y.-Q. Zeng et al., “Virgin coconut oil: A comprehensive review of antioxidant activity and mechanisms contributed by phenolic compounds,” Crit Rev Food Sci Nutr, pp. 1–4, 2022, doi: 10.1080/10408398.2022.2113361.

R. Bodoira and D. Maestri, “Phenolic Compounds from Nuts: Extraction, Chemical Profiles, and Bioactivity,” Journal of Agricultural and Food Chemistry, vol. 68, no. 4. American Chemical Society, pp. 927–942, Jan. 29, 2020. doi: 10.1021/acs.jafc.9b07160.

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