Overview
This lecture explains the cultivation and processing of borang (Amorphophallus konjac) in Japan, focusing on the integration of traditional practices and modern technology in konjac production.
Introduction to Borang and Konjac
- Borang (Amorphophallus konjac) is a traditional Japanese food ingredient, valued for its high fiber and low calorie content.
- Konjac has been a staple in Japanese cuisine since the Edo period.
- Japan now imports most borang raw materials to meet increasing demand.
Cultivation Process
- Cultivation begins with selecting small tubers or bulbs as seeds.
- Soil is prepared using modern techniques for optimal aeration and drainage.
- Planting occurs from May to June when soil temperature is ideal.
- Seedlings are spaced 30 cm apart for optimal growth.
- Organic fertilizers like compost are applied to maintain soil nutrient balance.
Plant Care and Growth
- Maintenance includes weeding, additional fertilization, and using shade nets to protect from excess sunlight.
- Drip irrigation systems provide efficient and precise watering.
- Proper drainage systems prevent tuber rot caused by water stagnation.
- Biological and technological disease controls include beneficial soil microorganisms and organic pesticides.
- Plant care continues for 5 to 6 months until maturity.
Harvesting and Processing
- Borang is harvested after 8 to 10 months, usually between January and February.
- Modern harvesting machines prevent damage to tubers and soil.
- Tubers are cleaned mechanically, both in the field and at the factory.
- Cleaned tubers are ground into paste, filtered, and mixed with water and alkaline solution.
- The paste is shaped (blocks, sheets, pasta) and packaged for distribution.
Key Terms & Definitions
- Borang (Amorphophallus konjac) — A tuber plant used as the main ingredient in konjac food products.
- Konjac — A fiber-rich, low-calorie food made from borang tubers.
- Drip irrigation — System delivering water directly to plant roots, minimizing waste.
- Organic pesticide — Plant-derived pest control substance, safer for the environment.
Action Items / Next Steps
- Review the stages of borang cultivation and konjac production.
- Familiarize with key terms and modern agricultural techniques discussed.