暱稱
Lv 5
暱稱 發問時間: 社會與文化語言 · 2 0 年前

專業英文英翻中~翻得最通順~20點

Cleaning

Foods by the nature of the way they are grown or produced on farms in open environments often require cleaning before use. Cleaning ranges from simple removal of dirtfrom egg shells with an abrasive brush to the complex removal of bacteria from a liquid food by passing it through a microporous membrane. Grains must be cleaned of stones before use. Cleaning can be accomplished with brushes, high-velocity air, steam,water, vacuum, magnetic attraction of metal contaminants mechanical separation, and so on, depending on the product and the nature of the dirt.

The cleanliness of water used in the soft drink bottling industry must exceed many of the standards found adequate for drinking water. If a high degree of carbonation is to be achieved, then the water used in making the drink must be remarkably free of dust particles, colloidal particles, and certain inorganic salts, since these minimize carbon dioxide solubility and promote excessive escape of gas bubbles. To adequately water may require that city water receive such additional treatments as controlled chemical flocculation of suspended matter, sand filtration, carbon purification microfiltration, and deseration. This is no longer the unit operation of cleaning but a total cleaning process.

Some cleaning methods are dictated by surface characteristics of the product. Because pineapples have an irregular surface, the scrubbing action of high-pressure water jets is used.

Just as different food materials require special cleaning, the surfaces of food processing equipment need thorough and frequent attention. The cleaning of equipment, as well as a facility’s walls and floors must take into consideration the chemical and physical properties of both the surface to be cleaned and the type of soil. Many types of soil can be removed with mildly alkaline detergents, but strong alkali may be required for more tenacious deposits and heavy deposits of fats and oils or builtup protein deposits. Alkaline films and hard-water scales may require mildly acid detergents. Strong acids are highly corrosive to several metals, fabrics wood .rubber, and concrete floors. Strong alkalis also are corrosive to various metals and to glass. For these reason8,moderately alkaline and neutral detergents And wide application in the food industry. Several are listed in Fig. 5.2, along with the properties that affect their cleaning efficiency. Food plant operators generally call on detergent manufacturers for expertise in establishing highly effective cleaning procedures since these further depend on detergent concentrations, temperatures of application, order of application where more than one cleaning aid is used, and other variables.

3 個解答

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  • 匿名使用者
    2 0 年前
    最佳解答

    清理

    根據食物在農場開放環境下耕種出來的產品本質,這些產品在使用前須要經過清潔處理.清洗食物的方式有從簡單的用粗刷子把蛋殼表面的砂土刷掉到複雜的把液體食物倒流入多微孔薄膜以除去細菌的方法.穀物在使用前必須除去石粒.清洗的方法可用刷子,高速率氣体,水蒸汽,水,及真空吸塵.或以磁性吸鐵把鐵雜質去除的機械分離法. 還有其他種種方法,完全看產品及泥沙本質來決定.

    要用在清洗工業界製造飲料瓶子的水的乾淨度必須遠超過一般飲用水適用水準,若要達到高度碳化作用,這種水須要非常純,連極微小的灰塵或極細微的膠質及特定無機鹽都不能雜在水裏.因為這些雜質會低化二氧化碳的溶解度,並且產生太多的氣泡.要產生這種適用水的方法市府的水須經過特殊處理.方法是控制化學物的凝絮作用,沙粒以碳純化過濾.這已不止清潔部驟而是應用整個清潔過程.

    有些清潔方法是看產品外皮特性,因為鳳梨外皮不規則就以高壓水沖方式擦洗.

    就像不一樣的食物材質就需要特別的處理方式,食噐表面也一樣經常須要徹底處理.清洗的器材及設備内的牆和地板也要周詳考慮到不只表面上的污漬,及這些污漬的化學性.很多種類污漬用柔和的鹼性清潔劑即可除去,有些頑強沉澱物和高油質蛋白質沉澱物,須用強鹼性清潔劑才能清除.硬水的鹼性層膜須要溫和的酸性清潔劑處理.強酸易腐蝕多種金屬,紡材,橡皮,及混凝土地.由於這些原因,中和的鹼和酸在工業界非常被普遍的使用.這些及一些會影響清潔效率的物質列在圖表5.2,因為須要進一步依賴濃縮清潔劑 ,或始用器的溫度,及當用多重清潔法的步驟和其他種,種所以食品製造的操作員通常會請清潔劑製造廠派專家設立一套高效率的清潔程序.

  • ?
    Lv 7
    2 0 年前

    From 0204: 等你呦~

  • 匿名使用者
    2 0 年前

    樓上的毛妹妹, 最好是你翻譯的沒有用翻譯機啊, 我現在上班去, 午休的時候我來做, 讓你看看什麼是真正翻譯

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