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TOMATO PRODUCTS
PRESENTED BY : ROBIN VARGHESE
SUB: TECHNOLOGY OF FRUITS AND VEGETABLES
INTRODUCTION
Tomato, though botanically a fruit for the purpose of trade, is
generally considered a vegetable because of the way in which it is
consumed. Tomatoes are widely grown in all parts of the world.
However, the yield per hectare is the highest (245 tonnes/hect.) in
Netherlands. The world average yield of tomato is 23 tonnes per
hectare. Indian average yield of tomato is 9.6 tonnes per hectare.
Tomato products such as puree, juice, ketchup are commonly used
commodities in households, hotels and restaurants. These items are
used to enhance the taste of different food products. Tomato puree
is used as a substitute of fresh tomato in cooking. Ketchup is a
sweeter and diluted version of puree(Pulp).
Tomato sauce tastes sweet and sour. Both sauce and ketchup are
consumed with food and snacks. Tomato is a valuable raw material
used for processed products such as juice, puree, and paste,
ketchup/sauce, and canned whole.
Average yield of world top 10 producers
TOP 10 PROCESSING TOMATO COUNTRIES 2015
THE INDIAN PROCESSED TOMATO MARKET
Indiaโ€™s annual ketchup consumption
is estimated at 13,000 tonnes with a
market valuation of Rs 1.8 billion
(US$ 28 million). Nestleโ€™s Maggi
dominates the ketchup market with
a 37% market share followed by
Unileverโ€™s Kissan (29%) and Heinz
(10%
Though the market for processed tomato
products is expanding, the processing
industry is openly confronted with the
problem of limited supply of processing
tomatoes. Quality parameters for
processing include color, total soluble
solids, sugar content and firmness for
which existing Indian tomato varieties
currently available in India are
considered unsuitable.
Challenges faced by the industry
๏‚ง Processors seek reliable and consistent sourcing of tomatoes meeting quality standards at an
acceptable price and in the volumes desired to enable optimum capacity utilization. Volatility in
production levels and variations in harvesting contribute to dramatic price swings and provide a
challenge for processors to maintain sustained plant operations.
๏‚ง Indian tomato value-added manufacturers have found it difficult to procure the requisite
volumes of paste concentrate and pulp from local suppliers. Paste producers are in turn unable
to procure fresh tomatoes from farmers meeting the quality standards and in quantities that
enable optimum plant utilization.
๏‚ง Tomato price fluctuations can also severely impact procurement and processing. The All-India
Coordinated Research Project on Postharvest Technology estimated total average postharvest
losses of 13% for tomato though losses could be higher across the value chain.
๏‚ง India is the second largest producer of tomatoes with a 11% global share but processes less
than 1% of its produce compared to 26% in other major producing countries, and this results in a
loss of value to the farmer, consumer and the economy.
Types of tomato products
๏ฑTOMATO JUICE
๏ฑTOMATO PUREE
๏ฑTOMATO PASTE
๏ฑTOMATO KETCHUP/SAUCE
๏ฑDRIED TOMATO SLICES
๏ฑTOMATO POWDER
๏ฑCANNED TOMATOES
Manufacturing process of tomato juice
Preliminary processing of tomato
After selection of suitable fruits, they are washed in running water to remove all adhering dirt, dust,
foreign particles including fungal filaments and other microbes. On large scale production plant, rotary
washers or trough washers flitted with moving conveyer belt and soft rubber brushes are generally
employed.
Trimming & sizing
Tomatoes are trimmed manually with the help of knife to remove green, yellow coloured portion, decayed
or infected parts and stalks. The trimming losses may vary from 4 to 17% depending on the selection of
raw material. After trimming, tomatoes are cut into 4-6 small pieces of 0.4-0.6 inch and crushed for juice
extraction.
Pulping or juice extraction
The tomato juice is probably one of the most widely used juices. Fresh raw tomato juice is most beneficial
and because of its alkaline reactions if consumed alone. However, presence of sugar and starch rich
foods along with tomato juice make is acidic. The juice extraction may be done either by hot pulping, or
cold pulping method.
HOT PULPING
Crushed tomatoes are boiled in their own juice in
steam-jacketed stainless steel kettles or aluminum
pans for 3 to 5 minutes to facilitate pulping. The
crushed or chopped tomato pieces are heated to
at least 82ยบC for 15-20 seconds to
inactivate pectic enzymes. On industrial scale
heating is usually carried out in rotary coil tanks
followed by passing through a plate heat
exchanger (PHE) and holding tube to achieve a
processing temperature of 104ยบC to retain at least
90% of the potential serum viscosity in the original
fresh tomato. At small scale crushed or whole
tomatoes are pressure cooked for 2-3
minutes. Hot pulping or hot break method has
following advantages:
1.1 METHOD OF EXTRACTION
ADVANTAGES OF HOT PULPING
๏ฑ Serum separation tendency in the product is checked, because of more extraction of pectin
present in skin and around the seeds. Heat treatment also inactivates the enzymes
(pectic enzymes specially polygalacturonase) that may hydrolyze pectin and reduce the
viscosity of the juice or pulp. Polygalacturonase is highly heat resistance enzyme that cause
splitting of two adjacent galacturonic acid molecules and responsible for softening.
๏ฑ juice is quite viscous, heavy bodied and homogenous because of the extraction of pectin and
other soluble polysaccharides.
๏ฑ Thermal treatment partially sterilizes the juice or pulp; thereby it decreases the initial
microbial load and product can be kept for longer period.
๏ฑ Inactivation of oxidative enzymes i.e. ascorbic acid oxidase, prevent loss of vitamin C.
๏ฑ More juice yield as compared to cold pulping.
๏ฑ Juice or pulp obtained by hot pulping process is deep red and attractive in colour. It is
because of the release of pigments located within the cell vacuoles due to heating.
1.2 METHOD OF EXTRACTION
COLD PULPING
cold pulping or cold break method tomatoes are
scalded to facilitate the separation of skin before
chopping. Tomatoes are crushed or chopped at
temperature less than 66ยฐC and allowed to fall
into a holding tank, where they remain for few
minutes. During this period the native cell wall
hydrolyzing enzymes of pectinolytic enzymes of
the tomatoes are liberated and catalyze the
various hydrolytic reactions to release the
cellular components. The cold break juice is
inferior in terms of flavour, colour and nutrients
mainly vitamin C, but the juice is quite prone to
spoilage and quick processing of the extracted
juice is necessary.
DISADVANTAGES OF COLD PULPING
๏ฑ Extraction of juice from the interior of cell requires higher
pressure. Hence often juice yield become low, higher pressure cause
extraction at juice around the seeds, which is more acidic and less sweet.
๏ฑ Inferior colour (lighter) because of the less extraction of pigments from
the skin.
๏ฑ Poor microbiological quality as comparison to hot break juice.
๏ฑ Less nutrition due to oxidation of vitamin C resulting in l loss.
๏ฑ Cold extraction results in insufficient extraction of pectin and other
polysaccharides that may adversely affect the viscosity or consistency.
TOMATO JUICE
TOMATOES
WASHING
CUTTING
PRE- HEATING(60ยฐC)
CONCENTRATION(10-12ยฐBrix)
FILLING
JUICE EXTRACTION
CLOSING
COOLING
STORAGE
LABELLING
PASTEURIZATION(100ยฐc for 7
min
(REFINING)
Other subsequent tomato products
Manufacturing of Tomato Puree and Paste
The pulp which is obtained by hot or cold break method is concentrated to manufacture puree
and paste. Fully mature and deep red coloured tomatoes are preferred for the manufacture of
tomato puree and paste.
Tomato Puree
Tomato juice or pulp as obtained by cold or hot extraction method is concentrated to about 9.0
percent to 12.0 percent total solids to prepare tomato puree. Commercial tomato puree can be
defined as concentrated tomato juice or pulp without skin or seeds, with or without added salt
and containing not less than 9.0 percent salt free tomato solids, is medium tomato puree.
Further concentration to 12.0 percent solids will yield heavy tomato puree.
Tomato Paste
Tomato paste can be defined as concentrated tomato juice or pulp without skin and seeds, and
containing not less than 25 percent of tomato solids. If the tomato paste is further concentrated
to a tomato solid levels of 33 percent or more then it is called as concentrated tomato paste.
Tomato paste
TOMATO JUICE OR PULP
CONCENTRATIONโ€™
(OPEN KETTLE,VACCUM PAN)
HOT FILLING INTO BOTTLES OR
CANS
(82-88ยฐC)
THERMAL PROCESSING
STORAGE
COOLING
TOMATO KETCHUP
Ketchup
Product. Tomato ketchup is a sauce made from tomatoes or residues from the processing of tomatoes to
which salt and spices are added as well as one or more nutritive sweetening ingredients, vinegar or onion,
garlic or other vegetable flavouring ingredients. The cooking continues till the concentration reached 25
percent TSS. However, concentration of 28-30 percent total solid is ideal as further increase may adversely
affect the flavour of the product.
Raw material.
Tomato paste has a Brix of 28โ€“36. Processing ratio. 0.3โ€“0.4 kg of tomato paste is needed for 1 kg of ketchup.
The higher the sugar content (measured in Brix) of the tomato paste, the better/lower the processing ratio.
Production process.
The product is made from concentrated tomato juice or tomato paste, to which ingredients such as vinegar,
salt and spices are added, after which the product is boiled, fine sieved, placed in bottles and pasteurized in
an autoclave.
Shelf life
Ketchup that has been continuously refrigerated will generally stay at best quality for about 9 to 12 months.
MANUFACTURING PROCESS
FLOW DIAGRAM
NOVEL TOMATO BASED PRODUCTS
Dried Tomato Products
Tomatoes are quite perishable in nature and can be processed as dried product for value addition.
Tomato slices can be dried by using tray or tunnel drying process or alternatively tomato pulp of
juice may be spray dried to yield tomato powder of excellent quality. Drying process increases
their availability round the year in convenient form.
Dried tomato slices
Dried tomato slices are versatile ingredient and find its application in various food formulations.
Tomatoes of good quality are after through washing are blanched either in plain water or in 2.5%
salt solution for 1 min. These blanched tomatoes are dropped in cold water to quickly cool the
product. This also helps 1.5 cm thick slices, and excess juice is drained off. Tomato slices are
dipped in 2.5% gelatinized starch containing 5% potassium meta-bisulphate for 9 min. They are
spread over perforated or aluminum trays. Drying is carried out at 65-70C in a tray drier till the
moisture reached to 4.5%. These slices may be packed in polythene bags or grind as powder
DRIED TOMATO SLICES
TOMATO POWDER
Tomato powder
Tomato powder preparation is another technique for the preservation of tomato solids during off-
season and offer convenience to consumers. The powder may be used in formulation of other
processed products like culinary recipes or can be reconstitute in the form of juice or used as
starting material for the manufacture of secondary products like sauce, ketchup and chutney. The
tomato powder can be manufactured by using tray drying, foam mat drying or spray drying
process. The powder obtained by different methods also varies in their properties mainly colour,
nutrients and reconstitution.
For the manufacture of tomato powder whole tomatoes are cleaned, washed and surface
moisture is allowed to evaporate. The juice is extracted by hot pulping methods and pulp is
filtered to obtain pulp free juice which is subjected to vacuum concentration. The concentrated
juice is mixed with foaming agent to form foam which is dried by using hot air. The dried powder is
cooled, conditioned and ground in the form of powder.
๏ถ AGRIBUSINESS HANDBOOK FRUITS AND VEGETABLES PROCESSING
๏ถ Green Innovation Centre in the Agri-Food Sector (GIAE) โ€“ India
๏ถ RP shrivastav book on fruits and vegetables
๏ถ Google images

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tomato and products

  • 1. TOMATO PRODUCTS PRESENTED BY : ROBIN VARGHESE SUB: TECHNOLOGY OF FRUITS AND VEGETABLES
  • 2. INTRODUCTION Tomato, though botanically a fruit for the purpose of trade, is generally considered a vegetable because of the way in which it is consumed. Tomatoes are widely grown in all parts of the world. However, the yield per hectare is the highest (245 tonnes/hect.) in Netherlands. The world average yield of tomato is 23 tonnes per hectare. Indian average yield of tomato is 9.6 tonnes per hectare. Tomato products such as puree, juice, ketchup are commonly used commodities in households, hotels and restaurants. These items are used to enhance the taste of different food products. Tomato puree is used as a substitute of fresh tomato in cooking. Ketchup is a sweeter and diluted version of puree(Pulp). Tomato sauce tastes sweet and sour. Both sauce and ketchup are consumed with food and snacks. Tomato is a valuable raw material used for processed products such as juice, puree, and paste, ketchup/sauce, and canned whole.
  • 3. Average yield of world top 10 producers
  • 4. TOP 10 PROCESSING TOMATO COUNTRIES 2015
  • 5. THE INDIAN PROCESSED TOMATO MARKET Indiaโ€™s annual ketchup consumption is estimated at 13,000 tonnes with a market valuation of Rs 1.8 billion (US$ 28 million). Nestleโ€™s Maggi dominates the ketchup market with a 37% market share followed by Unileverโ€™s Kissan (29%) and Heinz (10% Though the market for processed tomato products is expanding, the processing industry is openly confronted with the problem of limited supply of processing tomatoes. Quality parameters for processing include color, total soluble solids, sugar content and firmness for which existing Indian tomato varieties currently available in India are considered unsuitable.
  • 6. Challenges faced by the industry ๏‚ง Processors seek reliable and consistent sourcing of tomatoes meeting quality standards at an acceptable price and in the volumes desired to enable optimum capacity utilization. Volatility in production levels and variations in harvesting contribute to dramatic price swings and provide a challenge for processors to maintain sustained plant operations. ๏‚ง Indian tomato value-added manufacturers have found it difficult to procure the requisite volumes of paste concentrate and pulp from local suppliers. Paste producers are in turn unable to procure fresh tomatoes from farmers meeting the quality standards and in quantities that enable optimum plant utilization. ๏‚ง Tomato price fluctuations can also severely impact procurement and processing. The All-India Coordinated Research Project on Postharvest Technology estimated total average postharvest losses of 13% for tomato though losses could be higher across the value chain. ๏‚ง India is the second largest producer of tomatoes with a 11% global share but processes less than 1% of its produce compared to 26% in other major producing countries, and this results in a loss of value to the farmer, consumer and the economy.
  • 7. Types of tomato products ๏ฑTOMATO JUICE ๏ฑTOMATO PUREE ๏ฑTOMATO PASTE ๏ฑTOMATO KETCHUP/SAUCE ๏ฑDRIED TOMATO SLICES ๏ฑTOMATO POWDER ๏ฑCANNED TOMATOES
  • 8. Manufacturing process of tomato juice Preliminary processing of tomato After selection of suitable fruits, they are washed in running water to remove all adhering dirt, dust, foreign particles including fungal filaments and other microbes. On large scale production plant, rotary washers or trough washers flitted with moving conveyer belt and soft rubber brushes are generally employed. Trimming & sizing Tomatoes are trimmed manually with the help of knife to remove green, yellow coloured portion, decayed or infected parts and stalks. The trimming losses may vary from 4 to 17% depending on the selection of raw material. After trimming, tomatoes are cut into 4-6 small pieces of 0.4-0.6 inch and crushed for juice extraction. Pulping or juice extraction The tomato juice is probably one of the most widely used juices. Fresh raw tomato juice is most beneficial and because of its alkaline reactions if consumed alone. However, presence of sugar and starch rich foods along with tomato juice make is acidic. The juice extraction may be done either by hot pulping, or cold pulping method.
  • 9. HOT PULPING Crushed tomatoes are boiled in their own juice in steam-jacketed stainless steel kettles or aluminum pans for 3 to 5 minutes to facilitate pulping. The crushed or chopped tomato pieces are heated to at least 82ยบC for 15-20 seconds to inactivate pectic enzymes. On industrial scale heating is usually carried out in rotary coil tanks followed by passing through a plate heat exchanger (PHE) and holding tube to achieve a processing temperature of 104ยบC to retain at least 90% of the potential serum viscosity in the original fresh tomato. At small scale crushed or whole tomatoes are pressure cooked for 2-3 minutes. Hot pulping or hot break method has following advantages: 1.1 METHOD OF EXTRACTION
  • 10. ADVANTAGES OF HOT PULPING ๏ฑ Serum separation tendency in the product is checked, because of more extraction of pectin present in skin and around the seeds. Heat treatment also inactivates the enzymes (pectic enzymes specially polygalacturonase) that may hydrolyze pectin and reduce the viscosity of the juice or pulp. Polygalacturonase is highly heat resistance enzyme that cause splitting of two adjacent galacturonic acid molecules and responsible for softening. ๏ฑ juice is quite viscous, heavy bodied and homogenous because of the extraction of pectin and other soluble polysaccharides. ๏ฑ Thermal treatment partially sterilizes the juice or pulp; thereby it decreases the initial microbial load and product can be kept for longer period. ๏ฑ Inactivation of oxidative enzymes i.e. ascorbic acid oxidase, prevent loss of vitamin C. ๏ฑ More juice yield as compared to cold pulping. ๏ฑ Juice or pulp obtained by hot pulping process is deep red and attractive in colour. It is because of the release of pigments located within the cell vacuoles due to heating.
  • 11. 1.2 METHOD OF EXTRACTION COLD PULPING cold pulping or cold break method tomatoes are scalded to facilitate the separation of skin before chopping. Tomatoes are crushed or chopped at temperature less than 66ยฐC and allowed to fall into a holding tank, where they remain for few minutes. During this period the native cell wall hydrolyzing enzymes of pectinolytic enzymes of the tomatoes are liberated and catalyze the various hydrolytic reactions to release the cellular components. The cold break juice is inferior in terms of flavour, colour and nutrients mainly vitamin C, but the juice is quite prone to spoilage and quick processing of the extracted juice is necessary.
  • 12. DISADVANTAGES OF COLD PULPING ๏ฑ Extraction of juice from the interior of cell requires higher pressure. Hence often juice yield become low, higher pressure cause extraction at juice around the seeds, which is more acidic and less sweet. ๏ฑ Inferior colour (lighter) because of the less extraction of pigments from the skin. ๏ฑ Poor microbiological quality as comparison to hot break juice. ๏ฑ Less nutrition due to oxidation of vitamin C resulting in l loss. ๏ฑ Cold extraction results in insufficient extraction of pectin and other polysaccharides that may adversely affect the viscosity or consistency.
  • 13. TOMATO JUICE TOMATOES WASHING CUTTING PRE- HEATING(60ยฐC) CONCENTRATION(10-12ยฐBrix) FILLING JUICE EXTRACTION CLOSING COOLING STORAGE LABELLING PASTEURIZATION(100ยฐc for 7 min (REFINING)
  • 14. Other subsequent tomato products Manufacturing of Tomato Puree and Paste The pulp which is obtained by hot or cold break method is concentrated to manufacture puree and paste. Fully mature and deep red coloured tomatoes are preferred for the manufacture of tomato puree and paste. Tomato Puree Tomato juice or pulp as obtained by cold or hot extraction method is concentrated to about 9.0 percent to 12.0 percent total solids to prepare tomato puree. Commercial tomato puree can be defined as concentrated tomato juice or pulp without skin or seeds, with or without added salt and containing not less than 9.0 percent salt free tomato solids, is medium tomato puree. Further concentration to 12.0 percent solids will yield heavy tomato puree. Tomato Paste Tomato paste can be defined as concentrated tomato juice or pulp without skin and seeds, and containing not less than 25 percent of tomato solids. If the tomato paste is further concentrated to a tomato solid levels of 33 percent or more then it is called as concentrated tomato paste.
  • 15. Tomato paste TOMATO JUICE OR PULP CONCENTRATIONโ€™ (OPEN KETTLE,VACCUM PAN) HOT FILLING INTO BOTTLES OR CANS (82-88ยฐC) THERMAL PROCESSING STORAGE COOLING
  • 16. TOMATO KETCHUP Ketchup Product. Tomato ketchup is a sauce made from tomatoes or residues from the processing of tomatoes to which salt and spices are added as well as one or more nutritive sweetening ingredients, vinegar or onion, garlic or other vegetable flavouring ingredients. The cooking continues till the concentration reached 25 percent TSS. However, concentration of 28-30 percent total solid is ideal as further increase may adversely affect the flavour of the product. Raw material. Tomato paste has a Brix of 28โ€“36. Processing ratio. 0.3โ€“0.4 kg of tomato paste is needed for 1 kg of ketchup. The higher the sugar content (measured in Brix) of the tomato paste, the better/lower the processing ratio. Production process. The product is made from concentrated tomato juice or tomato paste, to which ingredients such as vinegar, salt and spices are added, after which the product is boiled, fine sieved, placed in bottles and pasteurized in an autoclave. Shelf life Ketchup that has been continuously refrigerated will generally stay at best quality for about 9 to 12 months.
  • 19. NOVEL TOMATO BASED PRODUCTS Dried Tomato Products Tomatoes are quite perishable in nature and can be processed as dried product for value addition. Tomato slices can be dried by using tray or tunnel drying process or alternatively tomato pulp of juice may be spray dried to yield tomato powder of excellent quality. Drying process increases their availability round the year in convenient form. Dried tomato slices Dried tomato slices are versatile ingredient and find its application in various food formulations. Tomatoes of good quality are after through washing are blanched either in plain water or in 2.5% salt solution for 1 min. These blanched tomatoes are dropped in cold water to quickly cool the product. This also helps 1.5 cm thick slices, and excess juice is drained off. Tomato slices are dipped in 2.5% gelatinized starch containing 5% potassium meta-bisulphate for 9 min. They are spread over perforated or aluminum trays. Drying is carried out at 65-70C in a tray drier till the moisture reached to 4.5%. These slices may be packed in polythene bags or grind as powder
  • 21. TOMATO POWDER Tomato powder Tomato powder preparation is another technique for the preservation of tomato solids during off- season and offer convenience to consumers. The powder may be used in formulation of other processed products like culinary recipes or can be reconstitute in the form of juice or used as starting material for the manufacture of secondary products like sauce, ketchup and chutney. The tomato powder can be manufactured by using tray drying, foam mat drying or spray drying process. The powder obtained by different methods also varies in their properties mainly colour, nutrients and reconstitution. For the manufacture of tomato powder whole tomatoes are cleaned, washed and surface moisture is allowed to evaporate. The juice is extracted by hot pulping methods and pulp is filtered to obtain pulp free juice which is subjected to vacuum concentration. The concentrated juice is mixed with foaming agent to form foam which is dried by using hot air. The dried powder is cooled, conditioned and ground in the form of powder.
  • 22.
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  • 24. ๏ถ AGRIBUSINESS HANDBOOK FRUITS AND VEGETABLES PROCESSING ๏ถ Green Innovation Centre in the Agri-Food Sector (GIAE) โ€“ India ๏ถ RP shrivastav book on fruits and vegetables ๏ถ Google images