What is Pepsin?
Pepsin is a powerful stomach enzyme (endopeptidase) that breaks down dietary proteins into peptides and amino acids, initiating protein digestion. Secreted by chief cells in the stomach as inactive pepsinogen, it is activated by hydrochloric acid (HCl) at a low pH, typically 1.5–3.5. It is used in medicine to aid protein digestion and in industry for food processing.
Everything You Need to Know
What foods activate pepsin?
Who should not take pepsin?
Individuals with pre-existing conditions such as gastroesophageal reflux disease (GERD) or irritable bowel syndrome (IBS) should exercise caution when using pepsin supplements. These conditions can be exacerbated by the increased acidity associated with pepsin use, leading to a worsening of symptoms.
Is pepsin bad for GERD?
While essential for breaking down food, pepsin causes inflammation and tissue damage when it reaches the throat. Dr. Johnston's studies have confirmed the presence of pepsin in patients with reflux symptoms and linked it directly to airway and throat damage.
Which fruit contains pepsin?
Fungal Diastase+pepsin+papain helps in relieving digestive disorders like indigestion, gas and abdominal pain and discomfort. It contains three digestive enzymes, namely: Papain, Diastase and Pepsin. Papain is a proteolytic enzyme (the breakdown of protein) that is extracted from the raw fruit of the papaya plant.
Main Details:
Function in Digestion: It operates in the acidic gastric juice to break down protein bonds (proteolysis).
Activation: Pepsinogen requires a low pH environment (acidic) to convert into active pepsin. It is highly active at pH 1–4, and inactivated at pH 8+.
Medical Uses: Pepsin supplements are used to manage digestive issues associated with poor protein digestion.
Side Effects & Risks: While used as a supplement, excessive pepsin (combined with acid reflux) is linked to damages in the throat, esophagus, and potential inflammation/cancer (reflux laryngitis). Supplement use can cause gastrointestinal discomfort or allergic reactions.
Activating Foods/Factors: Pepsin is activated by acidic environments created by HCL and acidic foods/drinks.
Application
Commercial pepsin is extracted from the glandular layer of hog stomachs. It is a component of rennet used to curdle milk during the manufacture of cheese. Pepsin is used for a variety of applications in food manufacturing: to modify and provide whipping qualities to soy protein and gelatin,to modify vegetable proteins for use in nondairy snack items, to make precooked cereals into instant hot cereals,and to prepare animal and vegetable protein hydrolysates for use in flavoring foods and beverages. It is used in the leather industry to remove hair and residual tissue from hides and in the recovery of silver from discarded photographic films by digesting the gelatin layer that holds the silver.
ANALYTICAL RESULTS
| Test Item | Method / Reference | Specification | Typical Result* | Conclusion | |
|---|---|---|---|---|---|
| Appearance | Visual | White to off-white / pale cream crystalline powder | White to off-white crystalline powder | Pass | |
| Identification | Enzyme identity / source declaration | Conforms to Pepsin | Conforms | Pass | |
| Source | Raw material declaration | Porcine stomach / gastric mucosa | Porcine origin | Pass | |
| Enzymatic Activity | Hemoglobin or egg albumin digestion method; USP/FCC/Ph. Eur. use pharmacopoeial activity assays | NLT 1:10000 digesting power or NLT 2.5 Anson U/mg (common trade spec) | 1:10000; 2.5 Anson U/mg | Pass | |
| Loss on Drying | Gravimetric | NMT 5.0% | 2.9%–5.0% (common published range) | Pass | |
| pH (2% solution) | pH meter | 3.0 – 4.5 | 3.4 | Pass | |
| Solubility | Visual | Soluble in water; readily soluble in dilute HCl | Conforms | Pass |
Production Process
