Food technology

Industrial plants and food technology » Food technology

Food technology has evolved into an interdisciplinary area based on chemical engineering and food science dealing with the production processes that make foods.
The demand for uniform and high quality food round the year, even at remote places from production center, has led to improved food processing technologies. Food industries are almost double the size of chemical industries and cover many areas such as dairy products, poultry and meat products, fruit and vegetable processing, grain processing, fats and oils, etc.
They emphasize on different operations namely food storage, food processing, food transport and food preservation. For this field, De Lorenzo has designed a wide range of complete systems or single machines of modest size, recommended for professional institutes, vocational schools and technical colleges, such as:
• Fruit processing line: European-type fruit handle and extraction. The raw material is fresh fruit like apple, pear, peaches, apricots, tomato and the final product is fruit cream or juices. It includes washing machine with pilot elevator, sorting line, distribution belt, elevator, soda peeling machine for fruit, vegetable and fruit dicing machine, fruit chopper, drum pitter, continuous single tube coke, one step refiner, mixing tank for product with slow stirrer capacity of 500 liters, fruit cream pump extraction type mono, electrical board and accessories.
• Fruit processing line: Citrus and berries. The raw material is fresh fruit like oranges, grapefruits, tangerine, berries and the final product is fruit cream or juices. It includes citrus fruit juice extractor, 50 liters buffer tank, fruit cream extractor, 80 liters bin and fruit cream pump extraction type mono.
• Fruit processing line: Fruit and tomato concentrated product, jam and ketchup preparation. The raw material is fresh fruit cream or juices and the final product is jam, marmalade, ketchup and concentrated fruit. It includes mixing tank for viscous product with slow stirrer capacity of 200 liters, electronic scale, vacuum concentrating/compact pan, thermo-conditioned tank, jam pump, concentration and cooking unit, electrical board and accessories.
• Fruit processing line: Fruit juice treatment. The raw material is fruit cream or juices and the final product is fruit juice or nectar hot filled. It includes mixing tank capacity of 200 liters, electronic scale, pump, tubular juice pre-heater, juice de-aerator, homogenizer, juice pasteurization unit, electrical board and accessories.
• Fruit processing line: Candied fruit demonstration and research plant; it reproduces the processing condition of the industrial model making the complete candying operation with a capacity of 50 kg per cycle using a modern technology to handle food.
• Fruit processing line: Packing equipment for juice, jam and concentrated products; it includes semi-automatic rinsing and blowing machine, one head pneumatic piston bench top filler, 2 tables in stainless steel, semi-automatic vacuum filling machine, semi-automatic screw caps table machine, pneumatic semi-automatic twist off caps table machine, pasteurizer tunnel for jars or bottles with feeding and discharging belts and drying equipment, semi-automatic labelling machine and packing machine for vegetables.
• Vegetable processing line: Additional machine to handle vegetables; it includes universal abrasive peeler machine, continuous water drum blancher, batch basket centrifuge, cutter/mixer/homogenizer, 2 working tables, one head semi-automatic vacuum machine, semi-automatic can seaming machine, sterilization surge tank and drying unit for fruit and vegetables with forced air circulation.
• Milk processing line: industrial plant with design and manufacturing pilot from milk receiving until milk pasteurization and its processing in yoghurt and cheese. It includes yoghurt vat, cheese making machine, cheese press and milk refrigeration.
• Food storage and services: it deals with services and food preservation and includes water cooling tower, pre-fabricated cold storage rooms, sinks with work top and freezing tunnel.
• Food preparation line: Multi-functional bench for food preparation. The raw material is fresh fruit like apple, pear, peaches, apricots, tomato and the final product is fruit cream or juices. It has a capacity to process 100 kg to 150 kg of fresh products per hour. It is composed of three sections such as a cooker with 50 liters capacity, dosing unit for the product coming from the first section and a pasteurization tank. It is equipped with electrical control box and PLC.
Apart from complete above lines, De Lorenzo designs and manufactures separate single machines such as washing and sorting line, grinding machines, tubular cookers, refining group for fruit and tomato processing, jam cooking units, heat exchangers, de-aerators, final pasteurization treatment, CIP (Cleaning In Place) system, dryers and pomegranate destemming machines.

Products Details

FRUIT PROCESSING

De Lorenzo S.p.A. designs and manufactures complete lines for:
Fruit puree
Complete lines for fruit puree preparation from any kind of fruits with a capacity from 50 kg/h inlet product, both with complete continuous automatic equipments and also with batch type units for small capacity production.
Fruit juice and nectar preparation
Complete dosing and mixing line for nectar preparation from fruit puree. We can provide lines both completely automatic where fruit puree is dosed and mixed with different ingredients of the recipe (sugar syrup, water, additives) and semi automatic for small and medium size factories.
Jam preparation line
Complete line for jam preparation; core of the line is the cooking system which can be under vacuum ‐ by using vacuum pan ‐ or at atmospheric pressure, with kettle working with steam or gas (even electrical for small production).
Therefore, we can provide a wide range of equipment suitable to cover the needs both of industrial line and small/medium factories till the agricultural laboratories for organic preparation.
Candied fruit preparation
Candied fruit is a product widely used in sweet and food preparation; the production requires a long and careful preparation.
We design and manufacture lines for fruit candying both working under vacuum and at normal pressure.
Drying lines for fruits
Static batch dryers suitable to process any kind of fruits.
Therefore, we are able to supply complete drying lines as well as equipment for product preparation as washing units, cutting machines and distribution systems of the products on drying trays.
Dates and tropical fruits
Complete line for dates paste preparation as well as for processing and packaging fresh dates.
Besides, we can supply complete lines for processing tropical fruits as mango, guava, passion fruit, pineapple in juice nectar and puree.

VEGETABLES PROCESSING

De Lorenzo S.p.A. designs and manufactures complete lines for:
Tomato processing
We can provide single machines or complete lines for the preparation of tomato passata, tomato sauces, tomato paste and ketchup.
Also for this kind of line we study tailor made solution for customers, both big industries and small and medium producers.
Preserved vegetables in oil or vinegar
Complete lines or single machines for processing vegetables in preserved products, in oil, vinegar and brine.
Mainly equipment of small‐medium capacity but ‐ as usual ‐ always design according to the real customer needs.
Drying lines for vegetables
Static batch dryers suitable to process tomatoes and any kind of fruits.
Therefore, we are able to supply complete drying lines as well as equipment for product preparation as washing units, cutting machines and distribution systems of the products on drying trays.

MILK PROCESSING

De Lorenzo S.p.A. designs and manufactures pilot and industrial lines from milk receiving till milk pasteurization and its processing in yogurt and cheese.

SINGLE MACHINES

Apart from complete lines, De Lorenzo S.p.A. designs and manufactures single machines such as, for instance:
Washing and Sorting Line
We offer complete and continuous washing and sorting line for fruits and vegetables to be processed in puree and or juice.
Capacity from 100 kg/h for the continuous lines.
Washing system completely manufactured in AISI 304 stainless steel and equipped with blower.
Sorting line with belt or rollers equipped with moto variator to adjust the speed.
We also produce batch type washing unit for small production capacity.
Grinding machines
We offer a wide range of grinding machines for fruits and vegetables (apples, pears, carrots, tropical fruit), covering production capacities from 100 Kg/h.
Tubular cookers
We design and manufacture cold break and hot break system for enzymatic treatment of fruit and tomato for preparation of nectar, paste and fruit mousse.
Refining group for fruit and tomato processing
Different technical and technological solutions for refining fruit, tomato and vegetable with industrial equipment having capacity from 100 Kg/h and even with pilot machine for lower capacity.
Jam Cooking units
We can provide different technological solutions for jam preparation: vacuum cooker and cooking kettle.
Both system with production capacity suitable to cover the need of the small laboratories and big industries.
Heat Exchangers
We design and produce pasteurizer and sterilizer plate, tubular, tube in tube, scraped surface types for different application according to the technological need of the customer.
Deareators
We can provide deareators for juices, nectars, fruit puree, ketchup and other products; on request equipped with aroma recovery system.
Final pasteurization treatment
For the thermal treatment of packaged product, we propose pasteurization tanks of different capacity (from 150 to 1000 L), heated by electricity (only for smallest models), by gas or steam.
For medium‐high production (more than 800/1000 units) we realize automatic tunnel of pasteurization.
CIP
It is well known that the cleaning and the sanitation of food plants is very important.
About this we propose a cleaning in place system (CIP).
Dryers
We produce batch dryers to process tomatoes, fruits and vegetables.
Available in different models, also pilot ones for small production.
Pomegranate destammer machines
We produce pomegranate destammer, in case equipped with pre‐chopper, with capacity from 3 tons/h.

MULTI‐FUNCTIONAL BENCH

Following the growing of small and compact plant for food preparation demand, we have designed a multi‐ function bench for jam, marmalade, tomato sauce and sauces.
It is enough a single bench to set up a laboratory, in fact with LAB50 you can cook, concentrate and mix, under vacuum or in atmosphere conditions, blanching fruit and vegetables, dosing the product still warm, and pasteurize full and capped vessels.
The bench is composed of three section:
· • a basin for the under vacuum cooking complete with an agitator, that offers significant advantages in terms of a little oxidation of the product and colour keeping;
· • a section to dose the product coming from the first section;
· • a pasteurizer tank which, as allowing the thermal treatment of the vessels, could be used to blanch fruit and vegetables using a basket with special holes.
· A control panel allows you to set all the parameters and save recipes.
· The bench is heated by electricity and it is placed on wheels. That allows installing the unit wherever you want, also in rural areas.
· It is also possible to realize a fixed version of the machine, that, in this case, will be connected to an external steam plant.
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DL LAB50

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EXAMPLES
VEGETABLES PROCESSING
FRUIT PROCESSING
MILK PROCESSING
SINGLE MACHINES
MULTI-FUNCTIONAL BENCHDL LAB50