Which of the following plastic packaging materials of about 10 microns is commonly used for individually wrapping 'citrus fruits' by blowing hot air for a tight contact seal, which reduces blemishes, delays physiological senescence, and restricts the spreading of microbial spoilage infected by contact surface?
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Thin LDPE films (10 microns) are highly suitable for fruit shrink-wrapping because they are flexible, heat-shrinkable, and provide a semi-permeable barrier that extends the shelf life of fresh citrus fruits.