Quality Standards in Carob Exports
When exporting carob, the first thing buyers look at is often not the price, but the quality specification of the product. Humidity, foreign matter, mycotoxins, infestation and microbiological values are the main criteria that determine whether a batch will be accepted or not.
In this article, we discuss the prominent quality parameters for carob fruit, kibble, powder, and seeds in exports, why these parameters are important, and the place of sampling and analysis processes in quality assurance.
Why is Quality Standard So Important?
Carob is an inherently variable raw material. A 2024 review by researchers from the University of the Algarve shows that the sugar and phenolic substance content in carob fruit varies markedly by variety and soil type. The same review also makes an important caveat: storage and processing facilities generally do not separate incoming fruit by origin or variety.
This variability requires a common language in international trade. This common language between the buyer and the seller is the product specification. Specification; It defines the parameters within which limits the product will be, the method by which these parameters will be measured and how the results will be documented.
A study conducted in Cyprus found that the nutritional composition of traditional carob products on the market varies significantly depending on the product type and production process; it found that only 60 percent of the products had a nutritional label and 75 percent of them complied with the label. This finding clearly demonstrates the importance of measurement-based quality control and accurate declaration.
Basic Quality Parameters
| Parameter | Why is it important? |
|---|---|
| Humidity | Storage life, mold and mycotoxin risk, weight calculation |
| Foreign matter | Food safety, protection of processing equipment, efficiency |
| Mycotoxins (aflatoxin, etc.) | Legal limits and consumer health |
| Infestation and pest damage | Product loss, hygiene and phytosanitary rules |
| Microbiological values | Safety especially in powder products used directly in food |
| Grain size and homogeneity | Process suitability for broken and powdered products |
| Sensory features | Color, smell and taste; quality of the end product |
| Core ratio and uniformity | Yield and value for gamut producers |
In this article, we do not give numerical limits for these parameters. Because the limits; vary according to the type of product, the intended use (food, feed, industry), the legislation of the buyer country and the contract with the buyer. The important thing is that each parameter is clearly defined in the specification and measurable.
Humidity
Humidity is one of the most critical parameters in carob products. High humidity in dried fruit, broken and powdered products; increases the risk of mold growth, clumping, loss of color and aroma, and mycotoxin formation. Packaging and storage conditions are also part of humidity control, as powdered products can easily absorb moisture from the air.
Humidity is also important from a commercial point of view. In a product sold by weight, high humidity means that the buyer pays for the water. For this reason, buyers usually set an upper limit, and if this limit is exceeded, consequences such as price reduction or rejection are defined in the contract. Specifying the method to be used for moisture measurement in the specification reduces differences in results between different laboratories.
Foreign Matter
Carob is a crop that is harvested largely by hand and often picked from the ground. Therefore, soil, stones, branches, leaves and other vegetable residues can be found in the raw material. Separating these substances before crushing and grinding is necessary for both food safety and protection of processing equipment.
In powder products, physical hazards such as metal particles become important. The presence of controls such as magnets and metal detectors in grinding lines is among the issues frequently asked by buyers.
The issue of foreign substances is also associated with food counterfeiting. Spink and Moyer's study, published in the Journal of Food Science, highlights that intentional adulteration for economic gain can be riskier than traditional food safety threats because of unexpected contaminants involved. Risks such as mixing carob powder with other cheap substances are issues that buyers consider when evaluating suppliers.
Mycotoxins and Aflatoxin
Mycotoxins are toxic compounds produced by some types of mold under appropriate humidity and temperature conditions. Aflatoxins are the most well-known members of this group. The risk of mycotoxins in dried fruits and seeds largely depends on post-harvest drying, storage and transportation conditions.
One of the most important issues to be considered in mycotoxin control in carob products is sampling. Whitaker's study, published in the journal Food Additives and Contaminants, reveals that sampling in mycotoxin testing in foods is one of the most important sources of variability in results. Mycotoxins are not homogeneously distributed in a batch; contamination can be concentrated in a few. Therefore, a small sample that is not representative of the batch may show the real risk much lower or much higher than it is.
- The sample should be taken from different points of the batch according to a specific plan
- The total sample amount should be large enough to represent the batch
- The sample should be homogenized and then the analysis sample should be separated
- The analysis should be done in an accredited laboratory and with a validated method
The legal limits applicable to mycotoxins vary from country to country and from product group to product group. Before export, the legislation of the recipient country and the recipient's own specification should be checked together. We discuss the European Union legislation and contaminant limits in a separate article.
Infestation and Storage Pests
Carob attracts various insects during storage because it is a fruit with a high sugar content. Pests such as the locust bean moth can lead to crop loss and hygiene problems. The presence of insect debris and live insects can lead to batch rejection, especially in products intended for food.
The main measures against infestation are:
- Quick drying and cleaning of the product after harvest
- Clean, dry and well-ventilated warehouses
- Regular pest monitoring and logging
- Fumigation applied with authorized methods and documentation when necessary
- Avoiding long-term storage and a first-in, first-out principle
In terms of plant health, the presence of live pests may cause problems in the border controls of the recipient country. For this reason, it is also important that the product is free from pests in shipments that require a phytosanitary certificate.
Microbiological Criteria
Carob powder can often be used in products that are processed without cooking or at low temperatures (e.g. smoothies, bars, breakfast mixes). For this reason, microbiological quality in powdered products is an issue that buyers pay special attention to. Criteria for the total number of microorganisms, yeast-mold and pathogenic microorganisms are usually defined in the buyer's specification.
The roasting process can affect the microbiological load as well as changing the aroma and color properties of the powder. However, roasting should not be seen as a guarantee on its own; the whole process, from raw material acceptance to packaging, should be managed according to hygiene rules.
Special Criteria for Core and Scale
Since carob seed is the raw material of gum production, the quality criteria are slightly different. The cleanliness of the seed, the ratio of broken and damaged grains, foreign seed mixture and moisture status are important for gum producers.
The quality of the gum, on the other hand, depends largely on the processing technology. The University of the Algarve review states that the purity of the carob gum depends on how well the endosperm is separated from the embryo and the shell. The study of Dakia et al. also shows that the debarkation method affects the composition and physicochemical properties of the resulting gum. The purity criteria for carob gum, which is used as E410 in the European Union, are defined by Commission Regulation (EU) No 231/2012, as stated in EFSA's 2017 assessment.
Certificate of Analysis and Certification
International buyers usually require a Certificate of Analysis (CoA) for each batch. The main information expected in the certificate of analysis is as follows:
- Product name and description
- Batch number, production and expiration dates
- Measured parameters, results and specification limits
- Analysis methods used
- Laboratory performing the analysis and accreditation information
- Date of approval and authorized signature
The reliability of the certificate of analysis depends on the competence of the laboratory where the analyzes are performed and the fact that the sample is representative of the batch. For this reason, many buyers want independent and accredited laboratory analyzes as well as the supplier's own analyses. A scientific review that deals with food safety and quality audits emphasizes that the effectiveness of audits and standards largely depends on the competence of the auditors and the standard used. We cover sampling and laboratory analyses in detail in a separate article.
Frequently Asked Questions
Which quality criterion is the most important in carob exports? There is no single criterion; however, humidity, foreign matter, mycotoxins and infestation are included in almost every buyer's specifications.
Is there a risk of aflatoxin in carob? As with dried fruits and seeds, carob can also pose a risk of mold and mycotoxins under improper drying and storage conditions. Therefore, control and analysis are important.
How should samples be taken for mycotoxin analysis? Samples should be taken from different points of the batch, according to a specific plan and in an amount that will be representative of the batch. Scientific studies show that sampling is one of the most important sources of variability in results.
Is a certificate of analysis (CoA) required for every batch? Most international buyers require a certificate of analysis for each batch. The required parameters must be defined in the contract.
Quality-Driven Procurement with Carob Türkiye
Quality in carob products; It is ensured by managing all stages together, from raw material selection to cleaning, drying, processing, packaging and storage. As Carob Türkiye Carob fruit, Kibble (granule), flour/powder, Core and Extract We supply. For your specification and analysis requests Contact Now You can contact us on our page.
Foreign sources
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