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Pulp Juice

Updated: 2026-08-04

Overview

Juice residue, or pomace, is the fibrous material remaining after fruits or vegetables are pressed for their liquid content. It is a significant byproduct of the juicing industry, often comprising 20-30% of the original fruit weight. While traditionally discarded, modern practices recognize its value as a resource. Pomace composition varies by source but generally includes skin, pulp, seeds, and stems. Common sources include apples, grapes, citrus fruits, and berries. Its high fiber and nutrient content make it useful across multiple industries, reducing waste and adding economic value.

Key Features

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Juice residue is notable for its high dietary fiber content, which aids digestion and supports gut health. It also retains residual sugars, vitamins, and antioxidants from the original fruit, depending on processing methods. For example, grape pomace contains polyphenols like resveratrol, while citrus peels are rich in essential oils. The moisture content of pomace can range from 60-80%, requiring drying or immediate use to prevent spoilage. Its texture and composition make it adaptable for various applications, from food additives to biofuel production. Particle size and uniformity may vary, influencing its suitability for specific uses.

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Application Areas

In the food industry, juice residue is repurposed as an ingredient in baked goods, snacks, or animal feed to boost fiber and nutrient content. Grape pomace, for instance, is used in winemaking regions to produce grapeseed oil or dietary supplements. Agriculture benefits from pomace as a compost additive or soil conditioner due to its organic matter content. Industrial applications include biofuel production (e.g., biogas from anaerobic digestion) and extraction of pectin or natural dyes. Cosmetics and pharmaceuticals also utilize bioactive compounds extracted from pomace.

Precautions

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Storage is critical for juice residue, as high moisture content can lead to rapid microbial growth. Drying or refrigeration is recommended for extended shelf life. Suppliers should also consider potential allergens—for example, residues from nuts or certain fruits may trigger reactions in sensitive individuals. When used in food or feed, pomace must meet regulatory standards for contaminants like pesticides or heavy metals, depending on the source material. Proper processing (e.g., pasteurization) may be necessary to ensure safety.

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B2B Procurement Guide

Buyers should specify the source material (e.g., apple, orange) and desired moisture content when purchasing juice residue. Bulk pricing is common, with costs often tied to transportation and processing (e.g., dried vs. fresh). Reliable suppliers include juicing facilities, wineries, and fruit processing plants. Contracts may address consistency in composition and delivery schedules. For specialized applications (e.g., polyphenol extraction), lab testing for compound concentration may be required. Sustainability certifications (e.g., organic, non-GMO) can add value for eco-conscious buyers.

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