Introduction: Tackling Chronic Purity Losses in Sugar Processing
Daily Crushing: 12000 TCD sugarcane
Mixed Juice Generation: 12000 KL (Brix-14.52, Pol-11.76, Purity-80.99)
Syrup Diversion to Distillery: 30% (3600 KL)
Ethanol and RS: 14 %v/v and 0.29 %w/v
Retention Time: 50 Hrs (Feeding-25 Hrs, retention-25 Hrs)
Distillery Production: 240 KLPD
In the competitive Indian sugar industry, mills face relentless pressure from fluctuating cane quality, microbial contamination, and process inefficiencies. A leading integrated sugar-distillery operation struggled with persistent purity drops averaging 1.1-1.22%, translating to 14 MT daily sugar losses worth INR 4.2 lakh (MSP INR 31/kg) alone. Other by products Volatile acids (VA up to 7,940 ppm), lactic acid (1,405 ppm), and residual sugars (0.52% w/v) exacerbated fermentation losses, while distillery yields lagged lower ethanol yield, more retention time with poor spent wash recycling.
This case study documents a 51-day trial (Dec 2025-Jan 2026) where The Catalysts Group deployed Bactosafe I and II—proprietary enzyme formulations for microbial control. Dosed alternately at just 6 ppm on cane crush quantity (usages help in restricting microbial resistance and uncontrolled proliferation), these enzymes eliminated microbial degradation root causes. Combined with disciplined monitoring (pH/Brix/POL/purity in PJ/MJ, VA/lactic in MJ/syrup/SW) and CIP sanitization, the intervention slashed purity drops by 90%, delivered INR 4.78 lakh daily net profit, and unlocked scalable gains up to INR 2.01 lakh/day.
Mill Condition Before Intervention: A Process Under Siege
The mill's baseline revealed systemic vulnerabilities across crushing rates of 12000 TCD:
Parameter | Historical Control | Recent Control | Impact |
Purity Drop | 1.22% | 1.12% | 0.1% reduction. 15 MT sugar loss prevented 1.4 Cr/Monthly Saving |
Volatile Acid | 7,940 ppm | 1,779 ppm | 6,161 ppm |
Lactic Acid | 1,405 ppm | 628 ppm | 777 ppm |
Fermentation RS | 0.52 % w/v | 0.29 % w/v | 0.23% indication stress reduction, Yeast boost |
SW Recycling | 8.83 % | 12.14 % | 3.31% indicating overall process improvement |
Distillery Ethanol | 212 KLPD | Suboptimal yield |
Root Causes: Uncontrolled bacterial load reduced POL retention, accelerated purity collapse in process juices, and contaminated syrup for distillery transfer. Spent wash recycling stagnated at 8.83%, with high process water consumption compounding costs.
Catalysts Group's Targeted Recommendations
The Catalysts Group prescribed a precision protocol leveraging their biotech expertise:
- Enzyme Dosing: Alternate Bactosafe I and II at 6 ppm (total 72 kg/day recommended dose for Catalyst’s product alternatively every 15th days).
- Real-Time Monitoring:
- PJ/MJ: pH, Brix, POL, purity drop (Thrice per shift)
- Syrup/Spent Wash: VA and lactic acid (Once per Shift)
- Process Hygiene: CIP sanitization for mills as "key booster"
- Distillery Optimization: Blend 40% MJ in syrup, 40 brix uniform syrup output; maximize SW recycling
This low-dose, high-discipline approach targeted microbial hotspots without overhauling infrastructure.
Post-Intervention: Dramatic Process Transformation
Within weeks, metrics confirmed enzyme efficacy:
Post-Intervention: Dramatic Process Transformation
Within weeks, metrics confirmed enzyme efficacy:
Sugar Mill Recovery
- Purity drop: 0.11% w/w avg (10% reduction)
- Daily savings: 15.16 MT sugar - INR 4.70 lakh/day (INR 1.41 Cr/month)
- Impurity Reductions:
Total sugar equivalent saved: 1.03% w/v across parameters.
Distillery Performance (Additional Benefits)
- Control: 212 KLPD: Trial: 239 KLPD (+26.7 KL/day; 12.6% uplift)
- Efficiency: +2.29% ethanol recovery (40° Brix syrup); +0.32% v/v titer
- Resource Savings: 16% process water ; 11% SW recycling (52 m³ reused vs 40 m³)
- Batch Metrics: RS 0.40% cycle time -1 hr/batch; net SW ~60%
Quantified Benefits: Direct ROI + Compounding Gains
Benefit Category | Daily Gain | Monthly (30 days) |
Sugar Recovery | INR 4.70 lakh | INR 1.41 Cr |
Net ROI (after cost) | INR 4.78 lakh | INR 1.43 Cr |
Distillery Ethanol (30% diversion) | INR 1.06 lakh | INR 31.7 lakh |
Syrup Process (70%) | INR 95,591 | INR 28.7 lakh |
Total @ 12k TCD | INR 2.01 lakh | INR 6.04 C |
Compounding Effects: 2.3% distillation energy savings, ETP volume reduction, consistent gravity drops to 1.000, and high-purity MJ for seamless syrup handling.
Breakthrough Success: A Template for Industry Transformation
This trial represents Catalysts Group's technical mastery in enzyme-driven microbial control, achieving:
- 10% purity drop elimination at minimal 6 ppm dosing
- 12.6% ethanol yield surge as proven ancillary benefit
- ROI in weeks: INR 8,640/day investment - INR 4.78 lakh/day return (product cost can be calculated here, better not to show)
- Scalable blueprint: Works across variable crushing (5k-20k TCD)
The operation's discipline—real-time analytics + CIP—amplified enzyme impact, setting a gold standard for integrated sugar-distillery optimization. This success validates Catalysts' value proposition amid India's ethanol blending mandates and cane price volatility.
Conclusion & Results: Ready-to-Replicate Efficiency
The intervention converted a loss-making process into a high-margin operation, proving that targeted enzymes address root-cause microbial threats more effectively than traditional chemicals. Total projected savings: INR 6 Cr/month at scale.
Key Takeaway: With Bactosafe I/II at 6 ppm + monitoring + CIP, any sugar mill can capture 1%+ sugar recovery while boosting distillery yields—delivering INR 2 Cr+ monthly competitive advantage.
Final Results Snapshot:
1. 10% Purity Drop Reduction
2. INR INR 4.78L Daily Net Profit
3. 239 KLPD Ethanol (+12.6%)
4. 16% Water Savings
5. Scalable to INR 6 Cr/Month
This case study demonstrates The Catalysts Group's ability to deliver measurable, bankable results through biotechnology precision.
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