Quality Control & Assurance for Raw Sugar Manufacturing

Comprehensive vocabulary flashcards covering Quality Assurance and Quality Control protocols, standards, and analytical methods in raw sugar manufacturing.

Quality Assurance (QA)

A proactive approach focused on preventing defects through SOPs, training, audits, and HACCP before or during processing.

Quality Control (QC)

A reactive approach focused on detecting defects through laboratory testing, sampling, and inspections during or after processing.

ICUMSA

The International Commission for Uniform Methods of Sugar Analysis, which sets scientific standards for sugar quality.

Calibration

The formal process of comparing a measuring instrument against a certified standard of known accuracy to ensure data integrity.

Cut-to-Crush

An SOP that defines how quickly sugarcane must move from the field to the mill to prevent sugar loss, with a critical limit of less than $24$ hours.

Brix ($^ ext{o}Bx$)

A measurement of total dissolved solids, representing the grams of solute per $100 ext{ g}$ of solution, often determined using a refractometer.

Imbibition

The process of adding water to fiber during juice extraction to ensure maximum sucrose recovery; typical target is $25 imes 10^0$% on cane.

Leuconostoc

A type of bacteria that can build up on mill rollers and troughs, causing microbial sucrose loss or "sugar theft."

Clarification

A purification protocol that uses liming and heating to remove impurities from juice while preventing the destruction of sucrose.

Sucrose Inversion

The chemical breakdown of sucrose that occurs at low pH levels, specifically considered an emergency if the limed juice pH falls below $6.8$.

Evaporation

The process of removing the major portion of water from clarified juice to produce concentrated syrup with a typical Brix of $65 ext{--}70 ext{ }^ ext{o}Bx$.

Crystallization

The process of concentrating syrup into massecuites to grow uniform sugar crystals using standardized seeding techniques.

Massecuite

The mixture of sugar crystals and molasses produced in the vacuum pans, categorized as A, B, or C based on purity and crystal content.

Centrifugation

The mechanical process of separating sugar crystals from molasses using high-speed baskets and specific wash-water volumes.

Safety Factor

A calculated limit for moisture content defined by the formula $\frac{ ext{Moisture}}{100 - ext{Pol}}$ to prevent fermentation and caking during storage; the critical limit is < 0.25.

HACCP

Hazard Analysis and Critical Control Points, a systematic safety framework used to identify physical, chemical, or biological hazards in food production.

Traceability

A mapping system that allows a bag of sugar to be linked to a specific lot number, production date, and the farm from which the raw material originated.

CAPA

Corrective and Preventive Action, a management system triggered by non-compliance to investigate root causes and implement systemic changes.

Polarization ($^ ext{o}Z$)

The measurement of sugar content (sucrose) using optical rotation; raw sugar typically requires a specification of $97.40$.

Reducing Sugars (%)

Invert sugars measured using the Lane and Eynon method, which involves titrating with Fehling’s solution.

Turbidity

A measurement of juice clarity or insoluble solids determined using a spectrophotometer at $900 ext{ nm}$, with a target of less than $5$ S.

Bagasse

The fibrous residue remaining after juice extraction, which should have a moisture content of less than $50.00$% and a maximum Pol of $3.00$%.

Purity Calculation

The formula used to track sugar quality at every boiling stage, calculated as $\frac{ ext{Pol}}{ ext{Brix}} imes 100$.

Dextran

A polysaccharide impurity in raw sugar measured using the Roberts method, with a specification not exceeding $400 ext{ mg/kg}$.

Ash Content

The inorganic species in sugar, often approximated through conductivity measurements (expressed in $ext{μS/cm}$ or $ext{mS/cm}$).