Lactose intolerance related to primary or secondary lactase deficiency is characterized by abdominal pain and distension, borborygmi, flatus, and diarrhea induced by lactose in dairy products. The biological mechanism and lactose malabsorption is established and several investigations are available, including genetic, endoscopic and physiological tests. Lactose intolerance depends not only on t...

The incidence of lactose malabsorption was investigated in 85 patients with ulcerative colitis and 71 patients with Crohn's disease by means of lactose tolerance tests and disaccharidase determinations in small intestinal mucosa. Eight patients with ulcerative colitis (9%) and four with Crohn's disease (6 %) had lactose malabsorption. A control group displayed a similar incidence. It is conclud...

The purpose of this study was to determine the lactose behaviour during partial crystallisation in spray drying. Spray-dried lactose has been widely used in pharmaceutical industries as excipient for dry powder inhalation drugs. Partial crystals of lactose were produced by spray-dried lactose solutions at different operating condition of inlet temperature, feed flow rate and sample concentratio...

Mutative lactose fermentation of lactose negative strains of Klebsiella pneumoniae to the lactose positive condition has been reported by Henriksen (1950) and Cabelli and Pickett (1953). The latter workers also demonstrated that the ability to ferment lactose was associated with a faster growth rate and with a greater resistance to the bacteriostatic action of the dye brilliant green, to the in...

Lactose is a prominent sugar found in all diary products, as well as in mother's milk. Lactose maldigestion/intolerance is the term used to describe the inability to digest lactose in milk and milk products, producing symptoms of intestinal gas, abdominal distension, and flatulence with loose, watery, acidic diarrhea.Adverse reactions to the lactose portion of milk are primarily related to the ...

The concept of lactose intolerance has become embedded in Western medicine and developing economy medicine. It is based on evidence that intestinal lactase activity persists into later childhood and throughout life in only a minority of the world's population, notably northern European-derived populations. These people have the T single nucleotide polymorphism (SNP) of the rs49882359 allele (C/...

INTRODUCTION Butter oil, ghee and butter are theoretically low in lactose. All three products are high in milk fat; butter oil and ghee contain approximately 99.3% fat and butter around 80% fat. We report the lactose and galactose content of butter, ghee, and butter oil and assess their suitability in a low galactose diet. METHODS A total of 12 samples (butter oil n = 5, ghee n = 5, butter n ...

Thirty-eight infants and young children with gastroenteritis were investigated for lactose malabsorption. Each of them was given an oral lactose load of either 0.5 g/kg or 2 g/kg after which breath hydrogen excretion was measured, and each was observed to see if he had clinical symptoms of lactose intolerance. Only one patient, given 2 g/kg lactose, had clinical intolerance. His breath hydrogen...

Sugar analysis is a common industrial analytical requirement. It is particularly important in the analysis of food products such as milk. Though lactose is the main carbohydrate in milk (1) and was typically the only sugar of concern, recently interest has expanded in analyzing milk products with reduced lactose. The lactose in milk can be reduced by hydrolyzing lactose into two other sugars, g...

Adult‑type hypolactasia (lactase nonpersistence or lactase deficiency) is the most common enzyme deficiency leading to lactose intolerance and primary lactose malabsorption. Clinical presentation of the condition includes symptoms resulting from bacterial fermentation of undigested lactose in the colon, which gives rise to gas bloat, increased motility, and loose stools. Diagnosis of the diseas...