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Xin Qui Trình Làm Thịt Giả

Chủ đề trong 'Câu lạc bộ kỹ sư' bởi dongocbien, 06/01/2006.

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  1. dongocbien

    dongocbien Thành viên mới

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    Xin Qui Trình Làm Thịt Giả

    Em rất thích ăn chay, bác nào có qui sản xuất thịt giả từ đậu nành thì send hay forward vào E-mail cho em với (bienpeaza@yahoo.com). Các bác gửi qui trình tổng quát cũng được còn giả thịt gì em có thể tự mầy mò. Nếu bác nào có qui trình riêng cho từng loại thịt thì càng tốt (giả bò, chó, gà, heo....). Em sẽ có hậu tạ cho các bác.
  2. thuyenxaxu

    thuyenxaxu Thành viên rất tích cực

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    Bài đăng bởI LuAnn trên website www.recipegoldmine.com về "thịt giả" cho biết như sau:
    "Vital Gluten" , cũng thuong đuoc gọi là "instant gluten", thuogn đuoc dùng để làm thịt giả bằng cách trộn một luong nước bằng với luong bột "Vital Gluten", cho thêm gia vị . Cắt gluten thành từng khúc từ 1.5 đến 2 inches theo đuong kính . Hoặc cắt xéo như cắt lạp xưởng . Cho vô baked trong oven đến khi nó phồng lên rồi mang vô chảo hay xong để hầm (simmererd) hay nấu sấp sấp với các nuoc broth khoảng 1 tiếng . Kết quả, bạn sẽ có đủ loại thịt giả tùy theo các nuoc gia vị mùi giả bạn dùng !
    Bạn chịu khó search tren internet duoi chữ "fake meat", bạn sẽ thấy có rất nhiều quy trình và công thức chi tiết hơn ! Luôn cả ... máy làm chúng nữa ! Thuyền kiếm và dịch bài trên cho bạn, dịch sơ sơ thôi chứ không đi vô chi tiết mấy ...
    Chúc bạn thành công trong việc labs của food engineering !
    ps: Hồi ở New Zealand, có tên kia trong ngành food engineering, hắn phát minh đuoc chất để làm thịt .. bò viên . Cục thịt bò viên tưng tưng như cục cao su vậy ! Và .. ăn được !
  3. thuyenxaxu

    thuyenxaxu Thành viên rất tích cực

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    Bên Mỹ này, hay có món thịt cua ... giả . Bài sau đây trích từ Gala E*** website viết về thịt cua giả !
    ===================
    Imitation Crab Meat
    Perry Romanowski
    Background

    Imitation crab meat is a seafood product made by blending processed fish, known as surimi, with various texturizing ingredients, flavorants, and colorants. First invented in the mid-1970s, imitation crab meat has become a popular food in the United States, with annual sales of over $250 million. Surimi is the primary ingredient used to create imitation crab meat. It is mostly composed of fish myofibrillar proteins. These proteins are responsible for the quintessential characteristic of surimi that makes imitation crab meat manufacture possible, namely the ability to form a sturdy gel. The gel can be shaped and cut into thin strips which, when rolled together, mimic the texture of real crab meat.
    History
    Although imitation crab meat was introduced in the United States in the early 1980s, the Japanese have been using surimi-based products for over 800 years. Tra***ionally called kamaboko, the first recorded surimi manufacturing procedure was found in a Japanese cookbook written in 1528. Commercial production of kamaboko products began on a small scale in the nineteenth century. However, modern manufacturing did not start until the twentieth century, when efficient methods of bulk fishing were developed. The basic manufacturing technology that is used today was primarily developed in Japan between 1945 and 1960. During this time, scientists developed techniques that made large-scale surimi production possible. For example, better methods of preservation were developed, and consequently the shelf life of surimi products was extended. Ad***ionally, the science behind the gel forming properties of the myofibrillar proteins was worked out, and many factors that contributed to its texture were discovered. One of the major problems with surimi was that when it was frozen, it lost its gel forming properties. As scientists investigated this problem, they discovered that the incorporation of cryoprotectant materials such as sucrose and sorbitol protected the surimi from degradation during freezing. This was important because it allowed imitation crab meat manufacturers to use surimi which was produced days earlier. This development of the mid-1960s resulted in a tremendous growth of the surimi-based seafood industry. The process of making imitation crab meat from surimi was invented independently by Y. Sugino and K. Osaki by 1975. Early production of this product in the United States began in 1983 by the Japanese company Yamasa Enterprises. As popularity of this product increased, other companies also began production, and by 1986 the market for imitation crab meat was $250 million. Ultimately, United States-based corporations took market share away from imported products and now export imitation crab meat to Japan.
    Raw Materials
    Various ingredients are mixed together to make a product which has the color, taste, and texture of crab meat. The surimi used in the manufacture of imitation crab meat is most commonly processed from the Alaska pollock or walleye pollock. To a lesser extent, the New Zealand hoki is also used. These fish are particularly useful because they are abundant, have little flavor, and are inexpensive to process. Other fish that have been used include the blue whiting, croaker, lizardfish, and Pike-conger. However, these fish currently present some problems during surimi manufacture, which limits their use. During the manufacture of surimi, various processing ingredients are added. Cryoprotectant materials such as sugar and sorbitol are added prior to freezing to prevent the degradation of the gel-forming properties of surimi. These ingredients also have an impact on the taste of the final product and help extend its shelf life. While surimi gels provide structure, other ingredients are needed to help stabilize and modify its texture. One important ingredient is starch. It improves the texture and stabilizes the gel matrix. This is particularly important for the stability of the product when it is frozen. The amount of starch is usually about 6% of the recipe. Egg white is also added to the surimi to improve the gel structure. It has the ability to increase the gel strength and improve its appearance by making the surimi more glossy and whiter. Vegetable oil is also been used to improve the appearance of surimi and modify its texture. Flavoring is added *****rimi to make it taste like crab meat. These flavorants can be natural or artificial, but typically a mixture of both is used. Natural flavoring compounds include amino acids, proteins, and organic acids, which are obtained through aqueous extraction of edible crabs. Artificial flavors can be made to closely match crab meat flavor and are typically superior to naturally derived flavorants. Artificial flavoring compounds include esters, ketones, amino acids, and other organic compounds. Ad***ionally, seasonings and secondary flavorants are added to the meat to improve the overall flavor. Common ingredients include nucleotides, monosodium glutamate, vegetable proteins, and mirin. The coloring for imitation crab meat is typically made using water insoluble compounds like carmine, caramel, paprika, and annato extract. By combining these and other ingredients, various shades of red, orange, and pink can be obtained. Before using the colorants, they are mixed in a surimi paste. This allows them to be easily applied to the imitation crab meat bundles.
    The Manufacturing Process
    1. Sorting, cleaning, and filleting
    The manufacture of imitation crab meat begins by preparing the fish that will be converted *****rimi. When the fish are caught in large nets, they must be manually sorted by species and cleaned. They are further mechanically sorted by size to optimize the yield of fillets. Scales are mostly removed from the fish after sorting. The fish are then conveyored to a filleting machine, which removes the head, tail, and viscera. Water washing is done next to remove excess fluids. This whole process can be done either on the fishing boat or in land-based manufacturing plants.
    2. Preparing Surimi
    The prepared fish fillets can then be minced, or mechanically deboned, and made in*****rimi. This is done using a mechanical deboner, which removes the skin, scales, fins, and bones. This machine is made up of a thick rubber belt and a perforated drum. As the fish passes through this machine, the belt presses it against the drum, forcing the soft flesh particles to the interior of the drum while leaving the harder scales and bones on the outside. The drum is constantly rotated and the excess outer material is scraped off and collected in a waste bin.
    3. The minced fish is next thoroughly washed with water in a process called leaching. This is done in a large tank which is emptied and refilled with water repeatedly. Leaching removes many undesirable water soluble materials such as fats, inorganic salts, and some proteins. After the final leaching cycle, the mince is partially dewatered before moving to the refining phase of manufacture.
    4. Refining machines are made up of a cylindrical screen and a rotor. The mince is selectively separated with the soft, white meat in the front of the machine and the harder, browner meat in the back. This refining step removes any residual materials such as skin, bones, and scales. The refined mince is sent to a screw press that removes all excess water.
    5. After dewatering, cryoprotective compounds such as sugar and sorbitol are added to the mince to help protect the fish proteins from breaking down during the final, freezing stage of manufacture. The final step in surimi production involves packing it in polyethylene bags in 22-lb (10-kg) blocks and quickly freezing it to below -4°F (-20°C). The surimi is stored at this temperature until it is ready to be used.
    6. Forming the crab meat
    The frozen surimi is converted to imitation crab meat through various steps. First, it is warmed to about 25°F (-4°C), then sliced into coarse flakes. In a process known as comminution, the surimi flakes are then mixed together in a stone bowl grinder with other ingredients in the crab meat recipe. These ingredients include starch, salt, natural crab meat, egg white, and flavors. This mixture results in a thick surimi paste, which is then transferred to a holding tank.
    7. The paste is pumped from the holding tank to the sheet-forming equipment. Here, continuous sheets of surimi, about 10 in (25 cm) wide and 0.05 in (1.2 mm) thick are produced. Due to the chemical nature of the surimi protein, these sheets are very smooth. After the sheets are formed, they are sent to machines for the initial cooking. This cooking helps set the sheets and prepares them for the slitting operation, which gives the meat the appearance and texture of crab meat.
    8. The slitting is done by a machine which is composed of two steel rollers that cut the surimi sheet into thin 0.1 in (1.5 mm) wide strands. These thin strands are then bundled and rolled into a rope. This rope is given the appropriate color, wrapped, and cut to the desired size. It is then steamed cooked, forming a product that looks and tastes very much like the crab meat it is designed to imitate.
    9. Packaging
    Imitation crab meat is mechanically vacuum packed in thermoformed trays. This protects the meat from contamination and provides an appealing look. Some common plastics used for packing include polyethylene, nylon, and polyester. After packing, the imitation crab meat is typically pasteurized in a steam cooker. This step helps prevent bacterial growth and increases shelf life.
    Quality Control
    In the manufacture of imitation crab meat, quality control tests are performed at various points. For example, the characteristics of the incoming raw materials are analyzed. Specific properties such as pH, percentage of moisture, odor, taste, and appearance are all evaluated. The quality of the incoming fish is also checked. Most important is the test for ranci***y. The quality of the surimi is also examined by testing various characteristics. The chemical composition is tested using laboratory methods. Such things as protein content, moisture, and lipid content are all checked. Also, visual assessment of the color and texture of the surimi gives an indication of quality, as does a pH test. Since the gel-forming ability of the surimi is paramount to its use in imitation crab meat, various tests are run to ensure that it meets minimum standards before it is used. Finally, imitation crab meat is susceptible to microbial attack. Therefore, manufacturers routinely test whether their products are contaminated.
    Byproducts/Waste
    The water left over from the manufacture of surimi is characterized as waste water. It is composed of many water-soluble substances, fats, and suspended particles. Environmental regulations require that manufacturers treat this water before returning it to the environment. This is done using such things as filters, centrifuges, and chemical treatments.
    The Future
    Future developments in the imitation crab meat industry are likely to be found in a few key areas. One important area of research has focused on the development of surimi from different kinds of fish. These would include fish that currently have low economic value and are quite abundant. Many of these new fish have more fat and different body chemistries than the fish currently used, so the challenge will be to improve the surimi that can be made using them. In the manufacturing area, a more continuous process is being developed. These processes result in better yields of surimi. Also, environmental concerns will lead to new technologies that will minimize the amount of waste involved in manufacture. Finally, new crab meat recipes aimed at improving the nutritional value of the product will be developed.
    Books
    Sikorski, Zdzislaw. Seafood Proteins. Chapman and Hall, 1994.
    Lanier, Tyre, and Chong Lee, eds. Surimi Technology. Marcel Dekker, 1993.
    Periodicals
    Okada, Minoru. "A Fish Story: What is the Plastic Food Really Made Of?" Chemtech (October 1991): 588-591.

  4. levant57

    levant57 Thành viên mới

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    Tôi có quy trình làm thịt giả...cầy, ăn cũng được nhưng đấy là trước kia. Bi giờ nuôi mấy chú chó, mỗi khi bạn bè rủ đi thịt chó vào những khi mưa gió hoặc ngày đông rét buốt, lại tưởng tượng ra cảnh mấy chú khuyển nhà bị đập chết, tưới nước sôi, cạo lông, rồi thui vàng bằng rơm mùa. Sau đó bị xẻ thịt, lòng mề đem làm món dồi, thịt thì số đem luộc, số nướng chả, số làm dựa mận...mùi thơm phức xông lên tới tận thiên đình. Đám xương đem ninh làm nồi nước sáo để ăn với bún thang...thì chẳng lòng dạ nào dám đi ăn. Cũng có bữa ăn một phát cho đỡ thèm. Ai dè khi về nhà, chân nam đá chân chiêu, với tay rờ đầu chú mực đầu đàn thì bị chú nguýt cho một chiếc phát sợ. Từ đấy không dám...về nhà khi từ quán thịt chó về nữa...
    Lại nhớ câu thơ dân gian:
    Ngồi buồn thui chó bằng rơm
    Khói lên nghi ngút chẳng thơm tí nào
    Khói bay lên tận Nam tào
    Ngọc Hoàng cúi hỏi đứa nào...đốt rơm.
    Thì y như rằng, những hôm dân tình đi chén thịt chó nhiều cũng làm ông trời thèm rỏ nước miếng...thảo nào trời mưa những ngày ấy.
    Lại băn khoăn hỏi ngược rằng ngày trời mưa sùi sụt là ngày thích hợp để rủ nhau vào chén thịt cầy hay là vì thèm thịt cầy mà ông trời mouth watering, dân tình tưởng mưa.
    Xin lỗi Mod, hứng quá spam cái. Hãy để đệ tử dựa mận đọc cho đã thèm rồi xóa đi chưa muộn. Đa tạ.
  5. cujnon

    cujnon Thành viên mới

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    Xin phép được bàn chỗ này một chút, chứ đã ăn chay mà còn thèm thịt thì thôi ăn thịt sướng hơn....
    Theo tui thấy thì nhiều người ăn chay vẫn có nem, chả, thịt đủ thứ, (không biết là có thịt chó chay hay không nữa?)..... như vậy thì làm sao mà tu hành......... cái này là ý kiến nhỏ thôi, có gì bỏ qua nha.....
  6. CoDep

    CoDep Thành viên rất tích cực

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    Công thức
    Thịt giả = Gluten + Broth
    không đúng đâu, vì borth là nước thịt rồi.
  7. CoDep

    CoDep Thành viên rất tích cực

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    Xin lỗi đã đánh máy lộn chỗ.
    Broth đúng là nước thịt hầm .
    Tuy vậy, ta có thể là nước broth giả bằng đậu tương lên men .
    Đó là nước tương, hay xì dầu, magi. Có điều ta không nên
    rang cháy đậu quá, làm nước có mầu sẫm, không ngon.
    Bạn nên học cách làm tương cổ truyền, rồi tìm men phân giải
    protein thành amin axit . Lấy nước tương đó thay broth thì công
    thức thịt giả sẽ là:
    Thịt giả = Gluten + Bean Broth
    Chuyện giả thịt gà, thịt chó là không cần thiết với người đi tu .
    Tôi ăn mặn, nhưng các mùi gà, mùi chó làm tôi buồn nôn .
    Tôi thích thịt hay đậu có mùi thơm thực vật như hương nhu,
    hoa nhài, hoa bưởi chẳng hạn . Nếu ta chế được những món
    Gluten thấm đẫm nước tương ngọt ngào, mà lại có hương
    bưởI, hương nhu, thì còn ngon gấp mấy thịt gà thịt dê thật .
    Việc gì phải chạy theo đuôi "thịt giả" mà không thể sáng tạo
    được "Thịt thực (vật)" với đúng nghĩa của nó?

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