Dampak Perilaku Generasi Z Menghasilkan Sampah Makanan (Food Waste) Berbasis Komoditas Beras Terhadap Ketahanan Pangan di Kabupaten Bantul
Shinta Dewi Novitasari, Prof. Dr. Ir. Djagal Wiseso Marseno, M.Agr.; Dr. Ir. Didik Purwadi, M.Ec.
2025 | Disertasi | S3 Ketahanan Nasional
The high volume of rice-based food waste among Generation Z in Bantul Regency poses a potential threat to local food security. Consumptive behavior influenced by digital culture and weak self-control has emerged as a major factor contributing to food waste. This study aims to: (1) identify rice-based food consumption behavior among Generation Z in Bantul Regency, (2) analyze the impact of Generation Z’s rice-based food waste behavior on food security, and (3) formulate strategies to reduce food waste and enhance food security based on Generation Z’s consumption behavior.
This research employed a mixed-methods approach using an explanatory sequential design. The quantitative phase involved a survey of 150 Generation Z respondents selected through stratified random sampling across three regional zones (lowland, hilly, and coastal). The qualitative phase consisted of in-depth interviews with youth, culinary business actors, community leaders, and government officials. Data were analyzed using linear regression (SPSS) and NVivo 12 Plus through thematic and word frequency analysis. The analysis integrated the Theory of Planned Behavior (TPB) and the concept of food security within the Logical Framework Analysis (LFA), supported by mitigation and navigation strategies in public policy.
The findings reveal a behavioral shift among Generation Z toward moderate diversification of rice-based consumption, marked by the inclusion of alternative carbohydrate sources based on lifestyle and activity. This flexible pattern reflects modern adaptation but also increases food waste through impulsive purchases, oversized portions, and irregular eating habits. Such behavior impacts the three pillars of food security: availability, access, and utilization by reducing actual food stocks, weakening economic access, and lowering nutritional use. Statistically, consumption behavior encompassing attitudes, subjective norms, and perceived behavioral control explains 26% of the variation in food security, with behavioral control as the dominant factor. The resulting economic losses, organic waste, and erosion of frugal values demonstrate how rice-based food waste weakens local food security. To address this, two strategies are proposed: short-term mitigation, focusing on portion education, food literacy, and digital campaigns; and long-term navigation, emphasizing curriculum integration, regional planning, and evidence-based policy evaluation. Together, these approaches promote sustainable consumption and reinforce local food resilience.
Kata Kunci : behavioral control, food security, food waste, generation z, theory of planned behavior