Processing of Sprouted Barley Dalia (Jau Dalia)
Sprouted barley dalia, also known as jau dalia, is a highly nutritious form of cracked barley that undergoes a sprouting process before milling. Sprouting enhances its digestibility, reduces antinutrients, and improves the bioavailability of key nutrients like vitamins, minerals, and enzymes.
Step-by-Step Processing of Sprouted Barley Dalia
1. Selection of Barley Grains
- High-quality, organic whole barley grains are selected.
2. Cleaning & Sorting
- The grains are cleaned using air classifiers and sieving machines to remove dust, husks, and foreign matter.
- A destoner is used to remove heavier impurities like stones.
3. Soaking
- Barley grains are soaked in clean water at an optimal temperature (25-30°C) for 8-12 hours.
- Acidic soaking (using lime juice or a weak acidic solution) can be used to further reduce antinutrients like phytic acid.
- The water is changed periodically to prevent microbial contamination.
4. Sprouting (Germination)
- The soaked grains are drained and spread in a germination chamber under controlled humidity (85-95%) and temperature (22-28°C).
- Sprouting is allowed for 24-48 hours, depending on the desired nutrient enhancement.
- The process activates enzymes like amylase and protease, improving digestibility and increasing vitamin B complex levels.
5. Drying
- The sprouted barley is dried using low-temperature drying (50-60°C) in a tray dryer or solar dryer to retain nutrients.
- Proper drying ensures a moisture content of <10% to enhance shelf stability.
6. Roasting (Optional)
- Light roasting (120-150°C for 10-15 minutes) enhances the flavor, improves shelf life, and reduces microbial load.
- This step also adds a nutty aroma to the final dalia.
7. Dehusking & Grinding
- If using hulled barley, a dehusking step is required using a pearling machine to remove the outer husk.
- The dehusked or hull-less barley is coarsely ground into dalia (cracked barley) using a roller mill.
- The particle size is adjusted based on the required texture (coarse or fine dalia).
8. Sieving & Packaging
- The ground barley is sieved to ensure uniform size.
- It is then packed in moisture-proof, air-tight pouches to prevent rancidity and microbial spoilage.
Nutritional & Functional Benefits of Sprouted Barley Dalia
- Higher Enzyme Activity: Amylases break down starches, making it easier to digest.
- Reduced Antinutrients: Phytic acid and tannins are reduced, improving mineral absorption.
- Increased Vitamin Content: Sprouting enhances B vitamins like B1, B2, B3, and folate.
- Improved Protein Quality: Protease activation makes amino acids more bioavailable.
- Better Fiber Profile: High β-glucan content supports gut health and cholesterol regulation.
Culinary Uses
- Traditional barley porridge (Jau Dalia) with milk and jaggery.
- Barley khichdi with lentils and vegetables.
- Healthy barley upma or pulao.
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