Alfa Laval - Citrusové plody

Citrusové plody

Úspech vo výrobe ovocných štiav závisí od rozhodujúcej rovnováhy medzi vzhľadom, chuťou, štruktúrou na jednej strane a zdravotnou bezpečnosťou a výrobnými nákladmi na strane druhej. Zariadenia, systémy a služby Alfa Laval pomáhajú svojim zákazníkom túto rovnováhu dosiahnuť.

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Separácia, zahustenie a pasterizácia pomarančov

Na výrobu pomarančových štiav sa používajú naše dekantačné odstredivky Foodec na odstránenie dužiny po vytlačení šťavy, zatiaľ čo tanierové odstredivky Alfa Laval rôznych typov a veľkostí sa bežne používajú pri čistení a regenerácii dužiny pre kalné šťavy.

Separácia v hermeticky uzavretom priestore

Pri výrobe štiav z citrónov výrobok často obsahuje veľké percento citrusového oleja. Najlepší spôsob, ako znížiť množstvo oleja bez vplyvu na kvalitu šťavy, je odstredivá separácia. Je to veľmi citlivý proces, nakoľko sa jedná len o veľmi malé množstvo oleja.

Hermetické separátory Alfa Laval odstránia tento olej účinne a spoľahlivo vďaka mimoriadne plynulej činnosti hermeticky uzavretého bubna.

Pasterizácia pomarančov

Kompaktná a tepelne účinná technológia výmenníkov tepla Alfa Laval sa tiež hojne používa na zabezpečenie maximálne šetrného spracovania ovocnej šťavy aj s veľkým obsahom dužiny, (nie vyrábanej z koncentrátov) pri zmenách teploty. Tieto jednotky Alfa Laval sa používajú aj pri pasterizácii, ktorá deaktivuje všetky enzýmy v šťave a zabezpečí ich mikrobiologickú stabilitu.

Využitie arómy a oleja

Pri výrobe šťavy možno z pomarančov extrahovať tiež olej a arómu. Spoločnosť Alfa Laval dodáva tiež moderné jednotky na extrakciu oleja, ktoré premenia jemné olejové emulzie na číry a čistý olej z kôry pomaranča.

Oranges

Large-scale operations

Oranges are cultivated in tropical and subtropical regions throughout the world. About 60 million tonnes of oranges are grown annually, accounting for more than two thirds of the world production of all citrus fruit. Of this, about 40% are processed into juice and the rest consumed as whole fruit.

Focus on concentrate

There are normally two focal points in the commercial processing of oranges – the juice itself and the oil extracted from the peel.

The juice is normally processed into concentrate or high-quality NFC (Not From Concentrate) juice, which can usually be sold at a premium. NFC-based juice is currently in considerable demand worldwide, and is the fastest-growing market segment for orange juice.

When the juice is produced as concentrate, equipment such as AlfaVap rising-film evaporators ensures rapid, low-temperature concentration. With the addition of a special aroma recovery unit, this gentle treatment helps make sure you get juice of the best quality. 

Separation, concentration and pasteurization of oranges.

Alfa Laval is a world leader in applying advanced centrifugal separation technologies to food and beverage processing.

If you produce orange juice, Foodec decanter centrifuges are ideal for removing pulp after extraction, while different types and sizes of Alfa Laval disc stack centrifuges are widely used in clarification.

Compact, thermally efficient Alfa Laval heat exchanger technology is also widely used to ensure the gentlest possible treatment when adjusting temperatures, and also for pasteurization that deactivates any enzymes present in the juice and makes it microbiologically stable.

Aroma and oil recovery

High-value oil and aromas can also be extracted from oranges side by side with juice processing.

Alfa Laval can also supply you with state-of-the-art oil recovery units that can process delicate oil emulsions into clear, pure peel oil.

Lemons

Not like the rest

Lemons are mainly grown for the special culinary properties of the highly acid juice and also for the oil extracted from the peel. This fetches a very high price, and is therefore much in focus when processing lemons.

The many kinds of juice that can be extracted from citrus fruit are normally destined either for domestic consumption or for processing into concentrate or high-quality NFC juice. This is not the case for lemon juice, however, because this juice is too acid to drink.

The juice is normally either concentrated to approx. 48–55 °Bx by evaporation or – less commonly – sold as single-strength juice. This juice can also be used as an ingredient in many other beverages, as it is known for its stable qualities.

Versatile revenue maximization

Regardless of whether you run a single-fruit processing operation or a multi-fruit installation, Alfa Laval systems and equipment can help you achieve quality levels that strengthen your revenues from lemon products.

The oils side

In citrus fruit processing, Alfa Laval is also renowned for equipment that separates oil from the peel. During this process, it is important to safeguard quality via the effective thermal management available from market-leader Alfa Laval equipment.

Hermetic separation

Processing lemons into juice often results in high levels of citrus oil in the juice.

The best way to reduce such oil levels without jeopardizing the quality of the juice is by centrifugation. This is an extremely delicate operation, because the amounts of oil are minute. Alfa Laval hermetic separators are able to remove this oil effectively and reliably due to the ultra-smooth action of the hermetic bowl.