A khandsari unit in the Agra belt crushes cane on a smaller scale than a sugar mill, but the microbial problem is the same: Leuconostoc and other bacteria convert sucrose into dextran and organic acids, and the juice loses recovery before it reaches the pan. In a distillery, the same bacterial load competes with the yeast for sugar and produces off-flavours that show up in the final spirit. Innovacorp India manufactures and supplies biocides in Agra for khandsari juice lines and distillery fermentation, with the grade selected against the process stream rather than a catalogue number.
Agra does not have a sugar mill base, so this page is not about sugar mill sanitation. The streams that matter here are the khandsari and gur units in the Agra region, and the distillery and fermentation units that the region's potato and grain supply supports. The chemistry is the same microbial control principle, applied to a different process.
The entry point for bacteria is different in a khandsari unit and a distillery. The notes below map the common Agra applications to the contamination point that usually dominates.
Khandsari juice line. The crusher and the juice channels are where Leuconostoc enters, and the bacteria multiply as the juice sits before boiling. A mill sanitation biocide is dosed at the crusher or the juice channel, and the dose is set on a microbial count rather than a fixed figure.
Distillery fermentation. The fermentation vessel and the feed stream are the contamination points, and a bacterial load competes with the yeast for sugar. A fermentation-compatible biocide is used, and the grade is selected for yeast compatibility rather than for broad-spectrum kill.
Gur and jaggery concentration. The open-pan concentration step is a different process from a vacuum pan, but the juice still carries bacteria before it is boiled. The biocide is dosed upstream of the concentration step, and the dose is set on the juice quality.
The same biocide does not serve both streams. The notes below are a selection guide, not a specification.
Mill sanitation biocide (khandsari). Formulated to control the bacteria in the juice line without affecting the sugar process. The product must be compatible with the juice chemistry and with any clarifying agent used downstream, and the dose is set on the microbial count at the crusher.
Fermentation biocide (distillery). Formulated to control bacteria without harming the yeast. The compatibility requirement is stricter than in the juice line, because an over-dose can slow the fermentation, and the grade is selected on a fermentation trial rather than on a standard dose.
Oxidising vs non-oxidising. Oxidising biocides act fast but can react with organic matter in the juice, while non-oxidising biocides are more persistent and more selective. The choice depends on the stream and the contact time available, and the final selection is confirmed on a plant trial.
The two most common biocide failures in Agra's units are dosing on a calendar rather than on a microbial count, and over-dosing in fermentation. Dosing on a calendar ignores the fact that the bacterial load changes with the cane quality and the season, so the dose that works in one week can be too low or too high in the next. Over-dosing in fermentation is the more expensive mistake: a biocide that is not compatible with the yeast can slow the fermentation, and the plant loses more in throughput than it saves in contamination. A microbial count at the entry point, and a fermentation trial before the dose is set, fix more problems than switching brands does.
Which biocide is used in khandsari juice processing in Agra?
Khandsari units in the Agra belt crush sugarcane and handle juice on a smaller scale than a sugar mill, but the microbial problem is the same: Leuconostoc and other bacteria convert sucrose into dextran and organic acids. A mill sanitation biocide is dosed into the juice line at the crusher, and the grade is selected on the juice chemistry and the unit's dosing setup.
How does a biocide help a distillery fermentation in Agra?
A distillery fermentation needs a healthy yeast population, and a bacterial contamination competes with the yeast for sugar and produces off-flavours. A biocide is used to control the bacterial load in the fermentation feed and the vessel, and the grade is selected for compatibility with the yeast rather than for broad-spectrum kill.
What is the difference between mill sanitation biocide and fermentation biocide?
A mill sanitation biocide is formulated to kill the bacteria in the juice line without affecting the sugar process, while a fermentation biocide is formulated to control bacteria without harming the yeast. The two applications have different compatibility requirements, and the same product is not used for both.
Can a biocide prevent dextran formation in Agra's khandsari juice?
Dextran forms when Leuconostoc bacteria convert sucrose, and a biocide that controls the bacterial load reduces the dextran formation. The dose is set on a microbial count at the crusher rather than on a fixed figure, because the bacterial load changes with the cane quality and the season.
Biocides are supplied in standard industrial containers; pack sizes on request. Store under cover, away from direct sunlight and freezing, and keep the product in its original container until use. Dosing lines should be flushed with water after each batch, and the dosing pump should be calibrated against the actual product flow rather than the pump setting alone. Because the correct dose depends on the microbial count and the process, the final programme is confirmed on a plant trial rather than on a label figure.
We help plant and quality teams work through grade selection, microbial count, dosing point and trial design. Final specification and dose are confirmed on a plant trial with your stream. For Agra-specific questions, call +91-9312871070 and our technical team will walk through the process with you. If your plant also treats cooling water or boiler feedwater, the cooling tower chemicals range and the boiler chemicals range cover the adjacent stages. Related products are on our biocide product page and the Agra industrial chemicals page.
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