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(3) That for each 20 ounces of net weight there may be present:

(i) Not more than 4 seeds including not more than one large seed, and

(ii) Not more than an aggregate area of two-square inches on the units covered by tough membrane or albedo.

(c) (B) classification. If the canned grapefruit and orange for salad is reasonably free from defects a score of 16 or 17 points may be given. Canned grapefruit and orange for salad that falls into this classification shall not be graded above U.S.Grade B, regardless of the total score for the product. (This is a limiting rule.) "Reasonably free from defects" means that any defects present do not materially detract from the appearance or edibility of the product, and specifically that:

(1) Not more than 15 percent by weight of the drained fruit may be damaged units, and

(2) That for each 20 ounces of net weight there may be present:

(i) Not more than one small piece of harmless extraneous material;

(ii) Not more than 12 seeds including no more than three large seeds; and (iii) Not more than an aggregate area of 3 square inches on the units covered by tough membrane or albedo.

(d) (SStd.) classification. Canned grapefruit and orange for salad that fails to meet the requirements of paragraph (c) of this section may be given a score of 0 to 15 points and shall not be graded above Substandard, regardless of the total score for the product. (This is a limiting rule.)

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(a) General. The factor of character refers to the structure and condition of the cells of the grapefruit and orange and reflects the maturity of the fruits.

(b) (A) classification. Canned grapefruit and orange for salad that has a good character may be given a score of 18 to 20 points. "Good character" means that the fruit is moderately firm and fleshy; that the segments or portions thereof possess a juicy, cellular structure free from dry cells, or "ricey" cells, or fibrous cells that materially affect the appearance or eating quality of the

product; and that the product is reasonably free from loose floating cells.

(c) (B) classification. If the canned grapefruit and orange for salad has a reasonably good character a score of 16 or 17 points may be given. Canned grapefruit that falls into this classification shall not be graded above U.S. Grade B, regardless of the total score for the product. (This is a limiting rule.) "Reasonably good character"

means

that the fruit may be affected, but not seriously so, by dry cells, "ricey" cells, or fibrous cells that detract from the appearance or eating quality of the product.

(d) (SStd.) classification. Canned grapefruit and orange for salad that fails to meet the requirements of paragraph (c) of this section may be given a score of 0 to 15 points and shall not be graded above Substandard, regardless of the total score for the product. (This is a limiting rule.)

EXPLANATIONS OF TERMS

§ 52.1262

Explanations of terms.

(a) "Brix" means the degrees Brix of the liquid media surrounding the canned grapefruit and orange for salad when tested with a Brix hydrometer calibrated at 20 degrees C. (68 degrees F.). If the liquid media is tested at a temperature other than 20 degrees C. (68 degrees F.) the applicable temperature correction shall be made to the reading of the scale as prescribed in the "Official Methods of Analysis of the Association of Official Agricultural Chemists." The degrees Brix of the liquid media may be determined by any other method which gives equivalent results.

LOT INSPECTION AND CERTIFICATION § 52.1263 Ascertaining the grade of a

lot.

The grade of a lot of canned grapefruit and orange for salad covered by these standards is determined by the procedures set forth in the Regulations Governing Inspection and Certification of Processed Fruits and Vegetables, Processed Products Thereof, and Certain Other Processed Food Products (§§ 52.1 through 52.87).

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Subpart-United States Standards for Grades of Canned Blended Grapefruit Juice and Orange Juice

SOURCE: §§ 51.1281 to 51.1293 appear at 19 F.R. 6025, Sept. 18, 1954, unless otherwise noted.

PRODUCT DESCRIPITON, STYLES, AND GRADES § 52.1281 Product description.

(a) Canned blended grapefruit juice and orange juice is the product prepared from a combination of undiluted, unconcentrated, unfermented juices obtained from mature fresh grapefruit (Citrus paradisi) and sweet oranges (Citrus sinensis). The juice of oranges from the mandarin group (Citrus reticulata), however, may be added in such quantities that not more than 10 percent by volume of the orange juice ingredient consists of juice from Citrus reticulata. Fruit which is clean and sound is properly washed; is packed with or without the addition of a nonliquid nutrient sweetening ingredient(s); and is sufficiently processed by heat to assure

preservation of the product in hermetically sealed containers.

(b) It is recommended that canned blended grapefruit juice and orange juice be composed of not less than 50 percent orange juice; however, in oranges yielding light colored juice it is further recommended that as much as 75 percent orange juice be used.

[30 F.R. 205, Jan. 8, 1965]

§ 52.1282 Styles of canned blended grapefruit juice and orange juice. (a) Style I, Unsweetened (or natural juice).

(b) Style II, Sweetened (or with added sweetening ingredient). Canned blended grapefruit juice and orange juice of this style shall have been processed with the addition of sufficient nutritive sweetening ingredient or sweetening ingredients to produce a Brix measurement of not less than 11.5°.

§ 52.1283 Grades of canned blended grapefruit juice and orange juice.

(a) "U.S. Grade A" or "U.S. Fancy" is the quality of canned blended grapefruit juice and orange juice that shows no coagulation; that possesses a very good color; that is practically free from defects; that possesses a very good flavor; and that scores not less than 85 points when scored in accordance with the scoring system outlined in this subpart.

(b) "U. S. Grade C” or “U. S. Standard" is the quality of canned blended grapefruit juice and orange juice that may show slight coagulation; that possesses a good color; that is fairly free from defects; that possesses a good flavor; and that scores not less than 70 points when scored in accordance with the scoring system outlined in this subpart.

(c) "Substandard" is the quality of canned blended grapefruit juice and orange juice that fails to meet the requirements of U. S. Grade C or U. 8. Standard.

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of the total score for the product (this is a limiting rule). "Good color" means that the blended juice possesses a fairly typical color that may range from light yellow to light amber, may be dull or show evidence of slight browning, but is not off color.

(c) (SStd) classification. Canned blended grapefruit juice and orange juice that for any reason fails to meet the requirements of paragraph (b) of this section may be given a score of 0 to 13 points and shall not be graded above Substandard, regardless of the total score for the product (this is a limiting rule). § 52.1288 Absence of defects.

(a) General. The factor of absence of defects refers to the degree of freedom from free and suspended pulp, recoverable oil, seeds and seed particles, and other defects.

(1) "Free and suspended pulp" means particles of membrane, core, skin, and other similar extraneous material in canned blended juice.

(b) (A) classification. Canned blended grapefruit juice and orange juice that is practically free from defects may be given a score of 34 to 40 points. "Practically free from defects" means that the juice may contain not more than 12 percent free and suspended pulp; that there may be present not more than 0.030 percent by volume of recoverable oil; and that the juice does not contain seeds or seed particles or other defects that affect more than slightly the appearance of the product.

(c) (C) classification. If the canned blended grapefruit juice and orange juice is fairly free from defects, a score of 28 to 33 points may be given. Canned blended juice that falls into this classification shall not be graded above U. S. Grade C or U.S. Standard, regardless of the total score for the product (this is a limiting rule). "Fairly free from defects" means that the juice may contain not more than 18 percent free and suspended pulp; that there may be present not more than 0.050 percent by volume of recoverable oil; and that the juice does not contain seeds or seed particles or other defects that affect materially the appearance of the product.

(d) (SStd) classification. Canned blended grapefruit juice and orange juice

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(a) (A) classification. Canned blended grapefruit juice and orange juice that possesses a very good flavor may be given a score of 34 to 40 points. "Very good flavor" means a fine, distinct canned blended grapefruit juice and orange juice flavor which is free from off flavors of any kind and meets the following requirements for the respective style: (1) Style I, Unsweetened (or natural juice).

(1) Brix: Not less than 10.0 degrees;

(ii) Acid: Not less than 0.80 gram nor more than 1.70 grams per 100 ml. of juice; and

(iii) Brix-acid ratio: Not less than 9 to 1 nor more than 17 to 1: Provided, That when the juice has a Brix of 11.5° or more, the Brix-acid ratio may be not less than 8 to 1.

(2) Style II, Sweetened (or with added sweetening ingredient).

(1) Brix: Not less than 11.5°;

(11) Acid: Not less than 0.80 gram nor more than 1.70 grams per 100 ml. of juice; and

(iii) Brix-acid ratio: Not less than 10 to 1 nor more than 17 to 1: Provided, That when the Brix is 15° or more, the Brix-acid ratio may be less than 10 to 1.

(b) (C) classification. If the canned blended grapefruit juice and orange juice possesses a good flavor, a score of 28 to 33 points may be given. Canned blended juice that falls into this classification shall not be graded above U. S. Grade C or U. S. Standard, regardless of the total score for the product (this is a limiting rule). "Good flavor” means a good, normal canned blended grapefruit juice and orange juice flavor which is free from off flavors of any kind and meets the following requirements for the respective style:

(1) Style I, Unsweetened (or natural juice).

(1) Brix: Not less than 9.5 degrees;

(ii) Acid: Not less than 0.65 gram nor more than 1.80 grams per 100 ml. of juice; and

(iii) Brix-acid ratio: Not less than 7.5 to 1.

(2) Style II, Sweetened (or with added sweetening ingredient).

(1) Brix: Not less than 11.5°;

(11) Acid: Not less than 0.65 gram nor more than 1.80 grams per 100 ml. of juice; and

(iii) Brix-acid ratio: Not less than 10 to 1: Provided. That when the Brix is 15° or more, the Brix-acid ratio may be less than 10 to 1.

(c) (SStd) classification. Canned blended grapefruit juice and orange juice that fails to meet the requirements of paragraph (b) of this section, or is off-flavor for any reason, may be given a score of 0 to 27 points and shall not be graded above Substandard, regardless of the total score for the product (this is a limiting rule).

EXPLANATIONS AND METHODS OF ANALYSES § 52.1290 Definitions of terms.

(a) "Brix" means the degrees Brix of canned blended grapefruit juice and orange juice when tested with a Brix hydrometer calibrated at 20 degrees C. (68 degrees F.). If used in testing juice at a temperature other than 20 degrees C. (68 degrees F.) the applicable temperature correction shall be made to the reading of the scale as prescribed in the "Official Methods of Analysis of the Association of Official Agricultural

Chemists." The degrees Brix of canned blended juice may be determined by any other method which gives equivalent results.

(b) "Acid" means grams of acid (calculated as anhydrous citric acid) per 100 ml. of juice in canned blended grapefruit juice and orange juice determined b titration with standard sodium hydroxide solution using phenolphthalein indicator.

§ 52.1291 Explanation of analyses.

(a) "Free and suspended pulp" is determined by the following method:

(1) Graduated centrifuge tubes with a capacity of 50 ml. are filled with juice and placed in a suitable centrifuge. The speed is adjusted, according to diameter, as indicated in Table No. I, and the juice is centrifuged for exactly 10 minutes. As used in this subparagraph, "diameter" means the over-all distance between the bottoms of opposing centrifuge tubes in operating position. After centrifuging, the milliliter reading at the top of the

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(b) "Recoverable oil" in canned blended grapefruit juice and orange juice is determined by the following method:

(1) Equipment. Oil separatory trap similar to either of those illustrated in Figure 1 or Figure 2.1

Gas burner or hot plate.
Ringstand and clamps.
Rubber tubing.

3-liter narrow-neck flask.

(2) Procedure. (i) Exactly 2 liters of juice are placed in a 3-liter flask. Close the stopcock, place distilled water in the graduated tube, run cold water through the condenser from bottom to top, and bring the juice to a boil. Boiling is continued for one hour at the rate of approximately 50 drops per minute. By means of the stopcock, lower the oil into the graduated portion of the separatory trap, remove the trap from the flask, allow it to cool, and record the amount of oil recovered.

(ii) The number of milliliters of oil recovered divided by 20 equals the percent by volume of recoverable oil.

LOT INSPECTION AND CERTIFICATION
Ascertaining the grade of a

§ 52.1292

lot.

The grade of a lot of the processed product covered by these standards is de

1 Filed as part of original document.

SCORE SHEET

Score sheet for canned blended grapefruit juice and orange juice.

Size and kind of container..

Container mark) Cans.

or

identification

Cases.

Label (including ingredient statement, if any). Liquid measure (fluid ounces).

Vacuum (inches).

Style...

Brix (degrees)

Acid (grams/100 ml.: calculated as anhydrous citric acid)

Brix-acid ratio (:1)...

Pulp (free and suspended) (%) Recoverable oil (% by volume).

Degree of coagulation{{ }

Color..

Factors

None () Slight.

Serious

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Absence of defects..

40 R(C)1

28-33

((SStd) 0-27

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