Project Description

Avocado Processing Line 

Avocado Processing Line Description 

  1. One avocado weight is from 200g-500g, the pulp content is 60%-75%, the fruit stone is 10%-30%, the peel content is from 7%-10%,  the oil content is from 10%-30%, the moisture from 70%-82%.
  2. Avocados are widely used in the food industry. They are rich in oils, vitamins, minerals, proteins, sugars and other substances necessary for human physiological activities. They are widely accepted because of their high-energy, low-sugar, and easy-to-digest characteristics.
  3. Avocado kernels are rich in fat and are important edible oils and industrial and mining oils. They can also be used to make margarine and soap. Avocado oil is non-irritating, low acidity, and can be stored for a long time after emulsification. In addition to eating, it can also be used as a raw material for mechanical lubrication, advanced cosmetics, oils for skin diseases, and ointments.
  4. The avocado can be consumed as fresh fruit, but also can proceed into jams, puree, juices, oil, sushi, dry slice/chips, salads, cold dishes, fruit jelly, etc. The avocado puree can be used for baby food, the avocado sauce or jam and oil are used for cooking ingredients, and avocado juice is a healthy drinking beverage.
  5. Single-strength avocado puree is 6-12Brix, and with forced circulation evaporator, the puree can be concentrated into 30-36Brix.
  6. The whole avocado processing line includes an avocado washing and sorting machine, avocado peeling and pitting machine, avocado pulping and refining machine, avocado puree decanter centrifuge separator, avocado oil separating machine, avocado sauce blending tank, avocado puree concentration machine, avocado puree/juice/sauce sterilizing machine and filling machine.
  7. The capacity for avocado processing ranges from 10 tons/day to 1500 tons/day, and the end products can be produced is concentrated or single-strength avocado puree, and avocado nectar, the end products can be filled into aseptic bags, bottles, or tin cans according to client requirements.
  8. The whole avocado processing machines are made of SUS304 material, which meets the requirements of food hygiene conditions.

The End Products And Package Of Avocado Processing Line

Avocado puree: Fresh avocado after washing, sorting, peeling and pitting, then use the pulping and refine machine to obtain the avocado puree, then the puree can be concentrated or homogenized to produce into single strength puree or concentrated puree. Then the puree can be homogenized and filled into aseptic bags or flexible pouches. the product is then blast frozen, packing into pouches, sealed, HPP sterilized and stored at-18℃. It is the raw ingredient for avocado juice, jams, smoothies or salads.

Avocado sauce: Avocado sauce processing is the same as avocado puree processing up to pulp extraction; the next step is high shear blending of pulp with water, gums, thickeners, and spices. Then the sauce will be homogenized, pasteurized and pumped to a filler and filled into either polyethylene pouches or bottles cartons;

Avocado juice: use concentrated avocado puree as raw material, dilute with water, sugar and other ingredients, then after homogenizing, sterilizing, and filled into small tin cans or bottles.

Dry avocado slice/chips: Fresh avocadoes after washing and pitting, then will be cut into slices and transported to heat pump dryer or frozen dryer to make the dry avocado products.

Avocado oil: After we remove peels and stones from the fruit pitting machine, then the avocado flesh is ground to a paste and then malaxed for 40-60 minutes at 45-50°C, after that, the soft avocado oil will be extracted by decanter centrifuge separator and stack centrifuge separator. The oil extracted by these methods is in its crude stage. In order to increase its value either for cosmetics use or for food consumption, avocado oil must be refined. The refining process will include alkali treatment, clay bleaching, deodorization, and winterization. The recovery is only about 50% of oil content.

Avocado package and container

 Avocado Processing Line Technological Flowchart 

Avocado processing line technological flowchart

 Key Machine Of Avocado Processing Line 

Avocado washing and sorting machine

The fresh avocado green fruit that comes from the grove must be washed with detergent and sanitized in one air bubble washing machine. Then after sorting out the bad fruits by the sorting conveyor manually, the brush washing machine will do the secondary washing by RO water.

Avocado air bubble washing machine
avocado brush washing machine

Avocado peeling and pitting machine

Avocados peeling and core removal process can be done manually or by machines depends on the capacity. When using the machine, the fruit stone washer and separator is applied. Through extrusion force between roller and mesh inside stone washer, screen out the fruit pulp of the stone. The pulp yield rate reach 75% through precisely separating the peel and fruit stones.

Avocado core remove machine

Avocado pulping and refining machine  

The halved and peeled avocado will be sent to double-stage pulping machine, this machine has crushing and pulping function, the first stage will crush the fruits, the second stage is pulping. The pulp yield rate is about 70% from the whole fruits.

The customer does not need to add another crusher, and the material does not need to be crushed before feeding, which reduces the user’s investment and reduces the equipment area. After pulping, if the clients want to more emulsified puree, the scrape refiner can be added.

Avocado pulping machine

Avocado puree decanter centrifuge separator

The avocado puree decanter centrifuge separator consists of a rotating bowl, which is driven by an electric motor and rotates at high speeds of up to 5000 RPM. The avocado puree is fed into the bowl from the top through a central inlet and is subjected to centrifugal forces, causing the solids and liquids to separate.

The heavier solids, such as pulp, skin, and seeds, are forced to the outside of the bowl and are collected and discharged through one outlet, while the lighter liquid portion, such as the avocado oil and juice, is discharged through a separate outlet.

The decanter centrifuge works continuously, with the separated solids and liquids being discharged at regular intervals.

The avocado puree decanter centrifuge is typically made of SUS304, and may have additional features such as variable speed drive, automatic feed control, and self-cleaning mechanisms, to improve its efficiency and ease of operation.

decanter centrifuge

Cold avocado oil extraction system 

The best cold press avocado oil extraction method is the three-phase decanter centrifuge separator. In this machine, the mash coming from the malaxation machine is fed into the machine together with about 10-20% of hot water (at the same temperature as the mash) depending on the characteristics of the product. The mash inside the centrifuge is separated into oil, water and solids (exhausted pulp and residual skin). Extraction is carried out in a continuous system and can be continuously adjusted according to variable dynamic pressure. This innovation enables us to perform a real-time adjustment of the differential speed between drums and conveyors, and feed rate according to the characteristics of the raw material with high flexibility, a high level of oil clarification and reduced water consumption. The oil phase and the water phase are collected separately under the decanter. The oil phase is pumped out to a vertical purifier centrifuge, while the water phase is pumped out to a vertical concentrator centrifuge.

Stack centrifuge separator for avocado oil

Avocado puree/juice pasteurizer

The most popular method for avocado puree sterilizing is HPP pasteurization, 600 MPa/23 °C/3 min. The HPP pasteurization is a cold(5℃-20℃) food and beverage preservation technology, Its working principle is to apply high pressure(up to 600Mpa) to food to destroy the biological structure of bacteria and parasites to extend the shelf life of the fruit puree or juice. Since the puree is not subjected to heat treatment during processing, the flavor and nutrition in the food are well preserved. The HPP technology sterilizes the material after they are filled into the container(soft bags or bottles).

For the avocado sauce or avocado juice, the tubular pasteurizer will be used to remove the bacteria and then hot-filled into small bottles.

Avocado puree HPP system

Avocado puree/juice filler 

Avocado puree’s most popular package is soft bags, the soft bag filling machine can be made of semi-automatic or full automatic according to the capacity or budget. And after filling, the soft bags can be pasteurized by the HPP system or labeled directly and blast freezing to -18℃ for storage.

Avocado juice can be filled into cans or bottles. the metal can or bottle filling machine consists of washing station, filling station and capping/sealing station. The filling temperature can be adjusted from 30℃ to 89℃ according to different processes.

The avocado sauce can be filled into jars or bottles by the sauce piston filling machine due to its high viscosity characteristic.

avocado juice filling system

Video Performance