Home / PRODUCTS / Fruit Processing Line / Fruit Juice Processing Line / Content

PRODUCTS

Grape Juice Processing Line

Grape juice is very refreshing and healthy. Processing of grapes into juice is not that simple task; it needs expertise to get the right flavor, taste and color.

Fast Delievery
Quality Assurance
24/7 Customer Service

Product Introduction

Product introduction

Grape juice is very refreshing and healthy. Processing of grapes into juice is not that simple task; it needs expertise to get the right flavor, taste and color. The quality of a juice depends upon the sugar level, acid content and flavor constituents. The composition of a juice varies from year to year and changes during ripening. Several factors which influence the composition of a juice are soil, climatic conditions, biotic, abiotic stress and vineyard management practices. Grape juice gets its color from the anthocyanin pigments located in or near the skin.

Product overview：

Grape juice is usually extracted using a hot-press or a coldpress technique and the temperature have a significant effect on its quality. Hot-press techniques yields more juice than cold-press.The whgrape juice production process includes raw material selection, cleaning, stem removing, crushing, color distill, extraction, filtration, blending, clarification, filling and sealing, sterilization and cooling.

Flowchart of Grape Juice Processing Line:

SHJUMP Grape Juice Processing Line display:

Description :

Key machines	Descriptions
Bucket Elevator	1. To lift the grapes to the processing line 2. Smooth bucket structure against clamping fruits 3. Running stably with low noise, speed adjustable by transducer. 4. Anticorrosive bearings, double sides seal.
Grape washing machine	Special design of surfing and bubbling to ensure a through cleaning and lessening the damage to the fruit as well.
Grape stemmer-crusher	Destemming-crushing machines separates the fruit from the stem with rubber food rollers. The pair of rollers ensures gentle squeezing of the grapes as standard on all models. The destemming shaft is made with rubber blades. The destemming cage is made from stainless steel with grooved holes. The machine is equipped with a central opening and cage extraction thereby facilitating simple and complete cleaning.
Preheating machine(for hot press grape juice )	The crushed grape are pumped through a steam-jacketed, vacuum preheater in which the pulp is heated to 60 to 63°C and passed into holding tanks
Enzymatic treatment tanks	slow-moving agitators in the holding tank mix pectolytic enzyme and ~7 Kg of purified paper pulp (as a press aid) into each 1 000 Kg (metric tonnes, MT) of grapes. It takes between 30 and 60 minutes for the enzyme to break down the pectin to make the grape pulp ready for pressing. This part of the process helps to extract colour from the skins into the juice
Grape juice extractor	There are several options for juice extraction and subsequent treatment. . In most commercial operations, the continuous pressing method is used. Hot pressing is appropriate for deeply pigmented grapes where maximum colour extraction is desired. Whereas, the immediate or cold press procedure is necessary to maintain the initial colour of light coloured grapes.
Heat exchangers of heating and cooling	Grapes are unique from other fruits in that after juice extraction, the argols (potassium bitartrate, tartar in crude form) and tartrates must be precipitated. Otherwise, the argols will settle out upon cooling or even when filtered juice is refrigerated. These crystals, although harmless, are aesthetically unpleasant and can be mistaken for glass fragments. Thus to accomplish detartration (cold stabilization), the filtered juice is flash-heated at 80 to 85°C in a tubular or plate-type heat exchanger, rapidly cooled in another heat exchanger to -2.2°C and placed in tanks for rapid settling of argols. Seeding with bitartrate crystals and ion exchange methods exist to accelerate the cold stabilization step
Grape juice filtration	Ultrafiltration is a pressurized membrane separation technology. Under certain pressure, small molecule solute and solvent pass through the apertures of a special film, while the large molecules leave one side of the membrane. In this way, the large molecule content get purified. Ultrafiltration is a membrane separation technique that adopts pressure to separate large and small molecules.
Grape juice Evaporator	1. Adjustable and contrllable direct contact heat treatment units. 2. Shortest possible residence time, presence of a thin film along the entire length of the tubes reduces holdup and residencetime. 3. Special design of liquid distribution systems to ensure correct tube coverage. The feed enters at the top of the calandria where a distributor ensures film formation on the inside surface of each tube. 4. The vapor flow is co-current to the liquid and the vapor drag improves the heat transfer. The vapor and the remaining liquid are separated in a cyclone separator. 5. Efficient design of separators. 6. Multiple effect arrangement provides steam economy.
Grape juice sterilizing machine	Grape juice concentrated to 55, 65 or 68°Brix minimizes transportation and storage costs. Evaporator includes a heat transfer surface, a feed distribution device, a liquid-vapour separator and a condenser. It is best to heat grape juice for as short a time as possible and to rapidly cool the product. Reduced exposure to heat minimizes the effect on flavour, aroma and sugar components. The following sections describe juice processing systems that are often coupled with essence recovery systems. The recovery systems are generally activated carbon columns that adsorb flavour and aroma compounds. Steam stripping can then be used to selectively remove these compounds for later addition to the concentrate or for other uses.
Grape juice aseptic filling machine	1.Applicable to aluminum foil (Bag-in-drum&Bag-in-box)compound aseptic bag from 5L-220L. 2.Consisted of aseptic filling head,accurate electronic balance,PLC control system,steam barrier and protection system,operation platform 3.Keep the filling chamber sterilized all the time by steam protection. 4.Full auto SIP and CIP available