AU2021103967A4 - Processing method of minced fish snack food with purple sweet potato added - Google Patents

Processing method of minced fish snack food with purple sweet potato added Download PDF

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AU2021103967A4
AU2021103967A4 AU2021103967A AU2021103967A AU2021103967A4 AU 2021103967 A4 AU2021103967 A4 AU 2021103967A4 AU 2021103967 A AU2021103967 A AU 2021103967A AU 2021103967 A AU2021103967 A AU 2021103967A AU 2021103967 A4 AU2021103967 A4 AU 2021103967A4
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minced fish
purple sweet
minutes
sweet potato
grinding
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AU2021103967A
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Yaqin Hu
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Hainan Tropical Ocean University
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Hainan Tropical Ocean University
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L17/00Food-from-the-sea products; Fish products; Fish meal; Fish-egg substitutes; Preparation or treatment thereof
    • A23L17/70Comminuted, e.g. emulsified, fish products; Processed products therefrom such as pastes, reformed or compressed products
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/20Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
    • A23L29/206Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
    • A23L29/244Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin from corms, tubers or roots, e.g. glucomannan
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Zoology (AREA)
  • Fish Paste Products (AREA)

Abstract

The invention discloses processing method of minced fish snack food added with purple sweet potatoes, which comprises the following steps: firstly, thawing frozen minced fish and grinding it for 3-10 minutes. On the basis of minced fish, 2.5% of salt and 10% of tapioca starch are added in turn, the water content is adjusted to 75-80%, and then grinding the minced fish for 30 minutes, and the temperature of the minced fish is kept below 100 C during the grinding process. Then adding purple sweet potato powder or fresh purple sweet potato into minced fish according to a certain proportion, and continuously crushing for 5-10 minutes. Heating at 80-1000 C for 15-30 minutes, taking out, and quickly cooling in ice water. Pre-freezing at -30-800 C after cutting it, and then vacuum freeze-drying it to obtain minced fish snack food with crisp taste with bright color and suitable for normal temperature preservation. The method of the invention The method is suitable for practical production operation, does not need to add industrial pigment, and has good nutrition and commodity value.

Description

Processing method of minced fish snack food with purple sweet potato added
TECHNICAL FIELD The invention relates to deep processing technology of aquatic products, in particular to processing method of minced fish snack food with purple sweet potato added.
BACKGROUND Minced fish products are products with high protein and low cholesterol, which are formed by minced fish with salt. Because that it is rich nutrition, and that it is not restricted by fish species and seasons, and it is well acclaimed by consumers. However, at present, minced fish products are basically added pre-frozen conditioning foods with high water content, such as fish balls, simulated crab meat, fish rolls, etc., and they are monotonous in product form and limited in consumer market. At present, the color of minced fish products on the market is mainly added with industrial pigments. With consumers paying more and more attention to food safety and nutrition, leisure foods added with industrial pigments are bound to have adverse concerns. At present, it has not been reported that minced fish leisure products can be preserved at room temperature by adding foods containing natural pigments to present bright colors. However, the natural pigment contained in food will change color in normal food processing, which not only affects the senses, but also be detrimental to the maintenance of food nutrients.
SUMMARY The aim of the invention is to provide processing method of processing method of minced fish snack food with purple sweet potato added. The purpose of the invention is realized by the following technical scheme: processing method of processing method of minced fish snack food with purple sweet potato added comprises the following steps:
(1) Thawing frozen minced fish in water or at 4-10°C, and grinding the thawed minced fish for 3-10 minutes. Based on minced fish, 2.5% of salt and 10% of cassava starch were added in order to adjust the water quality After the percentage content reaches 75-80%, continue grinding for 30min, and keep the temperature of minced fish below 100C during smashing. (2) Adding purple sweet potato powder or fresh purple sweet potato into the minced fish: if it is purple sweet potato powder (passing through 20-100 meshes), adding 2 times of water to make paste, adding it into the minced fish according to the ratio of -25% of the minced fish mass, and continuously crushing for 5-10 minutes. If it is fresh purple sweet potato, steaming and mashing fresh purple sweet potatoes, adding the mashed purple sweet potatoes into the minced fish according to the proportion of 20 % of the mass of the minced fish, and crushing for 5-10 minutes. (3) The processed minced fish in step 2 is heated at 80-1000 C for 15-30 minutes, and is taken out and then quickly cooled in ice water; (4) The cooled minced fish is the raw material of minced fish product, which is cut into strips with a width of 2-5cm, a thickness of 0.5-1cm and a length of 5-10cm. (5) Pre-freezing the sliced minced fish strips at -30-800 C, and then vacuum freeze-drying to obtain minced fish snack food with crisp taste, bright color and requires normal temperature preservation. The method disclosed by the invention has the beneficial effects that it is suitable for actual production operation, industrial pigments are not needed, and by adding purple sweet potato as ingredient , the minced fish product which can be preserved at normal temperature, and it is colorful and has crisp taste. As leisure food, it has good nutrition and commodity value.
DESCRIPTION OF THE INVENTION According to the invention, purple sweet potato powder or smashed fresh purple sweet potato is added in the process of mashing minced fish, and natural pigments contained in purple sweet potato seeds are utilized to process minced fish leisure food that can be preserved at normal temperature and has bright purple color through vacuum freeze drying, and the method comprises the following steps:
1.Thawing frozen minced fish in water or at 4-10°C, and grinding the thawed minced fish for 3-10 minutes. Based on minced fish, 2.5% of salt and 10% of cassava starch were added in order to adjust the water quality After the percentage content reaches 75 %, continue grinding for 30min, and keep the temperature of minced fish below 100 C during smashing. 2. Adding purple sweet potato powder or fresh purple sweet potato into the minced fish: if it is purple sweet potato powder (passing through 20-100 meshes), adding 2 times of water to make paste, adding it into the minced fish according to the ratio of 10-25% of the minced fish mass, and continuously crushing for 5-10 minutes. If it is fresh purple sweet potato, steaming and mashing fresh purple sweet potatoes, adding the mashed purple sweet potatoes into the minced fish according to the proportion of 20-40% of the mass of the minced fish, and crushing for 5-10 minutes. 3. The processed minced fish in step 2 is heated at 80-1000 C for 15-30 minutes, and is taken out and then quickly cooled in ice water; 4. The cooled minced fish is the raw material of minced fish product, which is cut into strips with a width of 2-5cm, a thickness of 0.5-1cm and a length of 5-10cm. 5. Pre-freezing the sliced minced fish strips at -30-800 C, and then vacuum freeze drying to obtain minced fish snack food with crisp taste, bright color and requires normal temperature preservation. The minced fish snack food processed by the method does not add industrial pigment, is harmless to human body, does not change the color of purple potato in the processing process, and produces minced fish chips with bright colors and good nutrition and commodity value. The purpose and effect of the present invention will become more obvious by describing the present invention in detail according to embodiment.
Embodiment 1 1. Putting 2.5 kg of frozen minced fish under tap water, unfreezing the minced fish in water until it is soft and the temperature reaches 30 C, pouring it into a grinder, grinding it solely for 3 minutes, adding 2.5% salt and 10% tapioca starch in turn, adjusting the water content to 75%, and then continue to grinding it for 30 minutes, keeping the minced fish temperature below 100 C during the grinding process. 2. Taking 400g of 40-mesh sweet purple potato powder, adding 800ml of water to make paste, adding it to the crushed minced fish, and continue grinding for 10min. 3. Wrapping the crushed minced fish with plastic wrap, flattening it with a flat plate, bathing it in hot water at 900 C for 20 minutes, taking it out and quickly cooling it in ice water. 4. The cooled minced fish is cut into strips with width of 2cm, thickness of 0.5cm and length of 6cm. 5. Spreading the sliced minced fish strips in a metal tray, pre-freezing them at -800 C for 24 hours, and then freeze-drying them in Laboco 6Pus model Vacuumlyophilizer for 48 hours to obtain minced fish snack food with crisp taste,and bright purple color, and special flavor of purple potato, that requires normal temperature preservation.
Embodiment 2 1. Putting 2.5 kg of frozen minced fish in a refrigerator at 40 C for 12 hours, pouring it into a grinder, grinding it solely for 3 minutes, adding 2.5% salt and 10% tapioca starch in turn, adjusting the water content to 75%, and then continue to grinding it for 30 minutes, keeping the minced fish temperature below 100 C during the grinding process. 2. Taking 250g of 20-mesh sweet purple potato powder, adding 500ml of water to make paste, adding it to the crushed minced fish, and continue grinding for 5min. 3. Wrapping the crushed minced fish with plastic wrap, flattening it with a flat plate, bathing it in hot water at 900 C for 20 minutes, taking it out and quickly cooling it in ice water. 4. The cooled minced fish is cut into strips with width of 5cm, thickness of 1cm and length of 5cm. 5. Spreading the sliced minced fish strips in a metal tray, pre-freezing them at -300 C for 24 hours, and then freeze-drying them in Laboco 6Pus model Vacuumlyophilizer for 48 hpirs to obtain minced fish snack food with crisp taste,and bright purple color, and special flavor of purple potato, that requires normal temperature preservation.
Embodiment 3 1. Putting 2.5 kg of frozen minced fish in a refrigerator at 4C for 12 hours, pouring it into a grinder, grinding it solely for 3 minutes, adding 2.5% salt and 10% tapioca starch in turn, adjusting the water content to 75%, and then continue to grinding it for 30 minutes, keeping the minced fish temperature below 100 C during the grinding process. 2. Taking 625g of 100-mesh sweet purple potato powder, adding 500ml of water to make paste, adding it to the crushed minced fish, and continue grinding for 8 minutes. 3. Wrapping the crushed minced fish with plastic wrap, flattening it with a flat plate, bathing it in hot water at 1000 C for 15 minutes, taking it out and quickly cooling it in ice water. 4. The cooled minced fish is cut into strips with width of 3cm, thickness of 0.8cm and length of 6cm. 5. Spreading the sliced minced fish strips in a metal tray, pre-freezing them at -700 C for 24 hours, and then freeze-drying them in Laboco 6Pus model Vacuumlyophilizer for 48 hours to obtain minced fish snack food with crisp taste,and bright purple color, and special flavor of purple potato, that requires normal temperature preservation.
Embodiment 4 1. Putting 2.5 kg of frozen minced fish under tap water, unfreezing the minced fish in water until it is soft and the temperature reaches 30 C, pouring it into a grinder, grinding it solely for 3 minutes, adding 2.5% salt and 10% tapioca starch in turn, adjusting the water content to 75%, and then continue to grinding it for 30 minutes, keeping the minced fish temperature below 100 C during the grinding process. 2. Taking fresh purple potato, well cooking it, peeling and mashing it into mush, adding 500g to the crushed minced fish, and continue grinding it for 5 minutes. 3. Wrapping the crushed minced fish with plastic wrap, flattening it with a flat plate, bathing it in hot water at 800 C for 30 minutes, taking it out and quickly cooling it in ice water. 4. The cooled minced fish is cut into strips with width of 2cm, thickness of 0.5cm and length of 6cm.
5. Spreading the sliced minced fish strips in a metal tray, pre-freezing them at -800 C for 24 hours, and then freeze-drying them in Laboco 6Pus model Vacuumlyophilizer for 48 hours to obtain minced fish snack food with crisp taste,and bright purple color, and special flavor of purple potato, that requires normal temperature preservation.
Embodiment 5 1. Putting 2.5 kg of frozen minced fish under tap water, unfreezing the minced fish in water until it is soft and the temperature reaches 30 C, pouring it into a grinder, grinding it solely for 3 minutes, adding 2.5% salt and 10% tapioca starch in turn, adjusting the water content to 75%, and then continue to grinding it for 30 minutes, keeping the minced fish temperature below 100 C during the grinding process. 2. Taking fresh purple potato, well cooking it, peeling and mashing it into mush, adding 500g to the crushed minced fish, and continue grinding it for 8 minutes. 3. Wrapping the crushed minced fish with plastic wrap, flattening it with a flat plate, bathing it in hot water at 900 C for 20 minutes, taking it out and quickly cooling it in ice water. 4. The cooled minced fish is cut into strips with width of 2cm, thickness of 0.5cm and length of 6cm. 5. Spreading the sliced minced fish strips in a metal tray, pre-freezing them at -700 C for 24 hours, and then freeze-drying them in Laboco 6Pus model Vacuumlyophilizer for 48 hours to obtain minced fish snack food with crisp taste,and bright purple color, and special flavor of purple potato, that requires normal temperature preservation.
Embodiment 6 1. Putting 2.5 kg of frozen minced fish under tap water, unfreezing the minced fish in water until it is soft and the temperature reaches 30 C, pouring it into a grinder, grinding it solely for 3 minutes, adding 2.5% salt and 10% tapioca starch in turn, adjusting the water content to 75%, and then continue to grinding it for 30 minutes, keeping the minced fish temperature below 100 C during the grinding process. 2. Taking fresh purple potato, well cooking it, peeling and mashing it into mush, adding 500g to the crushed minced fish, and continue grinding it for 10 minutes.
3. Wrapping the crushed minced fish with plastic wrap, flattening it with a flat plate, bathing it in hot water at 100°C for 10 minutes, taking it out and quickly cooling it in ice water. 4. The cooled minced fish is cut into strips with width of 2cm, thickness of 0.5cm and length of 6cm. 5. Spreading the sliced minced fish strips in a metal tray, pre-freezing them at -300 C for 24 hours, and then freeze-drying them in Laboco 6Pus model Vacuumlyophilizer for 48 hours to obtain minced fish snack food with crisp taste,and bright purple color, and special flavor of purple potato, that requires normal temperature preservation.
The above embodiments are used to explain the present invention, but not to limit it. Any modifications and changes made to the present invention within the spirit of the present invention and the protection scope of the claims fall into the protection scope of the present invention.

Claims (1)

  1. THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS: 1. Processing method of minced fish snack food with purple sweet potato added is characterized in comprising the following steps: (1) Thawing frozen minced fish in water or at 4-100 C, and grinding solely the thawed minced fish for 3-10 minutes. On the basis of minced fish, 2.5% of salt and 10% of tapioca starch are added in turn, the water content is adjusted to 75-80%, and then grinding the minced fish for 30min, and the temperature of the minced fish is kept below 0C during the grinding process (2) Adding purple sweet potato powder or fresh purple sweet potato into the minced fish: if it is purple sweet potato powder, sieving with 20-100 meshes, adding 2 times of water to make paste, adding it into the minced fish crushed in step (1) in a proportion of 10-25% of the mass of the minced fish, and continuously crushing for 5-10 minutes. If it is fresh purple sweet potato, steaming and mashing the fresh purple sweet potato, then adding the mashed fresh purple sweet potato into the minced fish according to the proportion of 20-40% of the mass of the minced fish, and grinding for 5-10 minutes. (3) Heating the minced fish crushed in step (2) at 80-100°C for 15-30 minutes, taking it out and then quickly cooling it in ice water. (4) The cooled minced fish is the raw material of minced fish product, which is cut into strips with a width of 2-5cm, a thickness of 0.5-1cm and a length of 5-10cm. (5) Pre-freezing the sliced minced fish strips at -30-800 C, and then vacuum freeze-drying to obtain minced fish snack food with crisp taste, bright color and requires normal temperature preservation.
AU2021103967A 2021-07-08 2021-07-08 Processing method of minced fish snack food with purple sweet potato added Active AU2021103967A4 (en)

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