Product Quality Improvement of Lanting Kebumen Using Quality Function Deployment and Taguchi Method

HoQ, Lanting Kebumen, QFD, Taguchi Method.

Authors

  • Rani Aviati Department of Industrial Engineering, Universitas Jenderal Soedirman, Indonesia
  • katon muhammad Department of Industrial Engineering, Universitas Jenderal Soedirman, Indonesia
  • Reza Azizul Nasa Al Hakim Department of Mechanical Engineering, Universitas Jenderal Soediraman, Indonesia
  • Hasyim Asyari Department of Industrial Engineering, Universitas Jenderal Soedirman, Indonesia
  • Heri Irawan Department of Industrial Engineering, Universitas Jenderal Soedirman, Indonesia
December 15, 2025
December 24, 2025

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Lanting is a traditional snack from Kebumen, which is made from cassava. Based on interviews with business owners, some lanting products are often returned by consumers. Therefore, improving the quality of Lanting is necessary to satisfy consumer needs. Meet consumer needs, it can be done with the House of Quality (HOQ), which will be developed with Taguchi's experimental design to get the best combination of parameters to meet consumer needs and make the product robust. This study aims to determine the priority attributes of consumers for lanting products, to know the factors that affect consumer needs, and to determine the most optimal combination of parameters that can meet the priorities of consumer needs. The results of distributing questionnaires show that the priority of consumer needs for lanting products is the crispness of lanting. The HOQ shows that the technical responses that have a strong relationship with consumer needs are the amount of frying (A), frying time (B), and frying temperature (C). These technical responses will be used as factors in experiments using the Taguchi method to determine the best combination of parameters that can improve the crispness of lanting. The results of the ANOVA analysis found that the factors that had a strong effect were factors A and C. In the SNR analysis, factor A contributes 96.1%, B 1.2%, and C 2.7%. The most optimal combination of parameters that can provide crispy lanting is the number of frying as much as twice, a frying time of 3 minutes, and a frying temperature of 170℃.