From Loose Oil Palm Fruits to Legitimate Palm Oil Value Chains: A Review
DOI:
https://doi.org/10.64137/31079423/IJEBMR-V2I2P119Keywords:
Oil Palm, Loose Oil Palm Fruits, Harvest Interval, Postharvest Quality, Free Fatty Acids, Smallholders, Certification, Governance, Traceability, Sustainable IntensificationAbstract
Loose oil palm fruits are often treated as a narrow operational concern at harvest, yet recent literature shows they are a broader systems variable that connects ripeness assessment, labour use, free fatty acid formation, mill efficiency, smallholder income, certification feasibility, and sectoral legitimacy. This article develops a narrative review of recent peer-reviewed scholarship, with emphasis on reputable journal publications from 2020 onward, to explain why loose fruits should be understood not as incidental residues but as a strategic node in the palm oil economy. The review finds that loose oil palm fruits contain valuable, recoverable oil, but poor collection, long harvest intervals, bruising, delayed processing, and mixed handling with fresh fruit bunches can degrade oil quality, particularly by increasing free fatty acid levels and reducing bleachability. At the same time, the problem is not purely technical. Smallholder yield gaps, labour scarcity, transport frictions, weak incentives, incomplete land legality, and uneven access to certified mills all shape how loose fruits are managed in practice. Recent evidence also suggests that better agronomy, shorter harvest intervals, targeted postharvest innovation, stronger farmer organisations, and more enabling certification design can improve both product quality and rural welfare without requiring further land expansion. The article, therefore, argues for an integrated approach in which loose-fruit management becomes a practical entry point for quality upgrading, inclusive intensification, and more credible governance in the palm oil sector.
References
[1] Dienda Hendrawan, D. Chrisendo, and O. Musshoff, “Strengthening oil palm smallholder farmers’ resilience to future industrial challenges,” Scientific Reports, vol. 14, no. 1, May 2024, doi: https://doi.org/10.1038/s41598-024-62426-z.
[2] T. M. Li, “Securing oil palm smallholder livelihoods without more deforestation in Indonesia,” Nature Sustainability, pp. 1–7, Feb. 2024, doi: https://doi.org/10.1038/s41893-024-01279-w.
[3] C. Reich and O. Musshoff, “Oil palm smallholders and the road to certification: Insights from Indonesia,” Journal of environmental management, vol. 375, p. 124303, Feb. 2025, doi: https://doi.org/10.1016/j.jenvman.2025.124303.
[4] R. Elisabeth et al., “Shortening harvest interval, reaping benefits? A study on harvest practices in oil palm smallholder farming systems in Indonesia,” Agricultural Systems, vol. 211, pp. 103753–103753, Oct. 2023, doi: https://doi.org/10.1016/j.agsy.2023.103753.
[5] M. R. KHALID, “MECHANISING OIL PALM LOOSE FRUITS COLLECTION – A REVIEW,” Journal of Oil Palm Research, Sep. 2020, doi: https://doi.org/10.21894/jopr.2020.0069.
[6] Bee Aik Tan et al., “Free Fatty Acid Formation Points in Palm Oil Processing and the Impact on Oil Quality,” Agriculture, vol. 13, no. 5, pp. 957–957, Apr. 2023, doi: https://doi.org/10.3390/agriculture13050957.
[7] Z. Ogahara, K. Jespersen, I. Theilade, and M. R. Nielsen, “Review of smallholder palm oil sustainability reveals limited positive impacts and identifies key implementation and knowledge gaps,” Land Use Policy, vol. 120, p. 106258, Sep. 2022, doi: https://doi.org/10.1016/j.landusepol.2022.106258.
[8] E. I. K. Putri et al., “The Oil Palm Governance: Challenges of Sustainability Policy in Indonesia,” Sustainability, vol. 14, no. 3, p. 1820, Feb. 2022, doi: https://doi.org/10.3390/su14031820.
[9] A. Fosch et al., “Replanting unproductive palm oil with smallholder plantations can help achieve Sustainable Development Goals in Sumatra, Indonesia,” Communications Earth & Environment, vol. 4, no. 1, pp. 1–12, Oct. 2023, doi: https://doi.org/10.1038/s43247-023-01037-4.
[10] H. Sugianto et al., “Improving yield and profit in smallholder oil palm fields through better agronomy,” Agricultural Systems, vol. 224, p. 104269, Feb. 2025, doi: https://doi.org/10.1016/j.agsy.2025.104269.
[11] Ketut Sukiyono et al., “The Contribution of Oil Palm Smallholders Farms to the Implementation of the Sustainable Development Goals-Measurement Attempt,” Sustainability, vol. 14, no. 11, pp. 6843–6843, Jun. 2022, doi: https://doi.org/10.3390/su14116843.
[12] M. Yasser, K. D. Dambul, and K. Y. Choo, “A review of non-destructive ripeness classification techniques for oil palm fresh fruit bunches - Agris UPM,” Upm.edu.my, Dec. 2023, doi: https://doi.org/Mohamed%20Yasser%20Mohamed%20Ahmed%20Mansour%20and%20Katrina%20D.%20Dambul%20and%20Choo,%20Kan%20Yeep%20%20(2023)%20A%20review%20of%20non-destructive%20ripeness%20classification%20techniques%20for%20oil%20palm%20fresh%20fruit%20bunches.%20%20Journal%20of%20Oil%20Palm%20Research%20(Malaysia),%2035%20(4).%20%20pp.%20543-554.%20%20ISSN%202811-4701.
[13] N. ABDUL HADI, “THE EFFECT OF MICROWAVE TREATMENT AND DELAYED HARVESTING ON OIL PALM FRUITLETS (Elaeis guineensis) OIL QUALITY,” Journal of Oil Palm Research, Apr. 2021, doi: https://doi.org/10.21894/jopr.2021.0015.
[14] J. P. Monzon et al., “Agronomy explains large yield gaps in smallholder oil palm fields,” Agricultural Systems, vol. 210, pp. 103689–103689, Jun. 2023, doi: https://doi.org/10.1016/j.agsy.2023.103689.
[15] R. E. de Vos, A. Suwarno, M. Slingerland, P. J. van der Meer, and J. M. Lucey, “Pre-certification conditions of independent oil palm smallholders in Indonesia. Assessing prospects for RSPO certification,” Land Use Policy, vol. 130, p. 106660, Jul. 2023, doi: https://doi.org/10.1016/j.landusepol.2023.106660.
[16] Eusebius Pantja Pramudya et al., “Incentives for Palm Oil Smallholders in Mandatory Certification in Indonesia,” Land, vol. 11, no. 4, pp. 576–576, Apr. 2022, doi: https://doi.org/10.3390/land11040576.
[17] Andini Desita Ekaputri, David, R. Heilmayr, and K. M. Carlson, “Uneven participation of independent and contract smallholders in certified palm oil mill markets in Indonesia,” Communications Earth & Environment, vol. 6, no. 1, Aug. 2025, doi: https://doi.org/10.1038/s43247-025-02683-6.
[18] H. Petri et al., “Replanting challenges among Indonesian oil palm smallholders: a narrative review,” Environment, Development and Sustainability, Jul. 2023, doi: https://doi.org/10.1007/s10668-023-03527-
[19] T. Santika et al., “Impact of palm oil sustainability certification on village well-being and poverty in Indonesia,” Nature Sustainability, vol. 4, Nov. 2020, doi: https://doi.org/10.1038/s41893-020-00630-1.
[20] A. Afrizal, O. Hospes, W. Berenschot, A. Dhiaulhaq, R. Adriana, and E. Poetry, “Unequal access to justice: an evaluation of RSPO’s capacity to resolve palm oil conflicts in Indonesia,” Agriculture and Human Values, vol. 40, Oct. 2022, doi: https://doi.org/10.1007/s10460-022-10360-z.
[21] I. Jelsma, None Turinah, F. Gay, J. Ollivier, and B. Rapidel, “Collective action, replanting and resilience; Key lessons from 40 years of smallholder oil palm cultivation in the Ophir plantation, Indonesia,” Agricultural Systems, vol. 213, pp. 103801–103801, Nov. 2023, doi: https://doi.org/10.1016/j.agsy.2023.103801.
[22] C. L. Chew, B. A. Tan, J. Y. S. Low, N. I. N. Mohd Hakimi, S. F. Kua, and C. M. Lim, “Exogenous ethylene application on postharvest oil palm fruit bunches improves crude palm oil quality,” Food Science & Nutrition, vol. 9, no. 10, pp. 5335–5343, Aug. 2021, doi: https://doi.org/10.1002/fsn3.2423.
[23] M. I. S. ZAKARIA, “OPTIMISATION OF ETHYLENE TREATMENT CONDITIONS FOR OIL PALM FRUIT DETACHMENT USING RESPONSE SURFACE METHODOLOGY,” Journal of Oil Palm Research, Aug. 2022, doi: https://doi.org/10.21894/jopr.2022.0040.
[24] A. Balakrishnan et al., “Postharvest Fruit Detachment in Oil Palm Bunches with Ethephon and Ethylene Gas Application,” Agriculture, vol. 11, no. 11, p. 1030, Oct. 2021, doi: https://doi.org/10.3390/agriculture11111030.
[25] N. F. MOHD SHUKRI, “CODE OF GOOD MILLING PRACTICE IN ENHANCING SUSTAINABLE PALM OIL PRODUCTION,” Journal of Oil Palm Research, Sep. 2020, doi: https://doi.org/10.21894/jopr.2020.0055.
[26] W. Berenschot, A. Dhiaulhaq, Afrizal, O. Hospes, R. Adriana, and E. Poetry, “Anti-Corporate Activism and Collusion: The Contentious Politics of Palm Oil Expansion in Indonesia,” Geoforum, vol. 131, pp. 39–49, May 2022, doi: https://doi.org/10.1016/j.geoforum.2022.03.002.
[27] R. Astuti et al., “Making illegality visible: The governance dilemmas created by visualising illegal palm oil plantations in Central Kalimantan, Indonesia,” Land Use Policy, vol. 114, p. 105942, Mar. 2022, doi: https://doi.org/10.1016/j.landusepol.2021.105942.
[28] N. A. binti Mohd Suib et al., “The Influence of Good Agricultural Practice (GAP) on the Productivity and Well-Being of Malaysian Sustainable Palm Oil (MSPO)-Certified Independent Smallholders in Malaysia,” Agriculture, vol. 13, no. 5, p. 990, May 2023, doi: https://doi.org/10.3390/agriculture13050990.
[29] A. Fosch et al., “Replanting unproductive palm oil with smallholder plantations can help achieve Sustainable Development Goals in Sumatra, Indonesia,” Communications Earth & Environment, vol. 4, no. 1, pp. 1–12, Oct. 2023, doi: https://doi.org/10.1038/s43247-023-01037-4.
