K-LOLAC

SKU: 700004314

65 assays per kit

Content:	65 assays per kit
Shipping Temperature:	Ambient
Storage Temperature:	Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:	> 2 years under recommended storage conditions

Analyte:	Lactose
Assay Format:	Spectrophotometer
Detection Method:	Absorbance
Wavelength (nm):	340
Signal Response:	Increase
Linear Range:	1 to 50 µg of lactose (or 0.50 to 25 µg of D-glucose)
Limit of Detection:	1.62 mg/L
Reaction Time (min):	~ 10 min
Method recognition:	AOAC Method 2020.08

The K-LOLAC test kit offers a rapid, novel, sequential measurement of free-glucose and lactose in conventional, low-lactose and lactose-free dairy products. This sequential assay format reduces the manual input required by an analyst when compared to traditional lactose assay formats and therefore improves both accuracy and efficiency. When used in combination with the Megazyme Creep Calculator provided, the β-galactosidase employed in this kit allows for the selective measurement of lactose in the presence of galacto-oligosaccharides (GOS) which are commonly found in lactose-free dairy products. This constitutes a significant improvement over existing commercially available lactose assay kits which typically overestimate lactose content in lactose-free samples due to the unselective hydrolysis of GOS by β-galactosidase. Lastly, the sensitivity of the K-LOLAC assay kit has been doubled through the use of a cascade biochemical pathway, helping to significantly reduce the LOD and LOQ for the assay.

We offer more monosaccharide and oligosaccharide assay kit products.

View Lactose Assay Kit (K-LOLAC) Flyer

View Product Poster Presentation – Single Lab Validation for K-LOLAC.

Validation of Methods

Advantages

• World’s first sequential assay for lactose, i.e. improves accuracy and efficiency 
• Contains a specific β-galactosidase for the selective measurement of lactose in dairy products 
• Efficient pre-treatment step allows for accurate measurement of lactose in “low-lactose” and “lactose-free” dairy products 
• Lower limit of detection (LOD) than any other commercially available enzymatic lactose detection method. LOD at 1.62 mg/L 
• Very competitive price (cost per test)

Introduction

The HiPure FastFilter Plasmid DNA Maxi Kits combine the power of HiPure technology with the time-tested consistency of alkaline-SDS lysis of bacterial cells to deliver high-quality DNA. HiPure DNA columns facilitate the binding, washing and elution steps thus enabling multiple samples to be simultaneously processed. This system also includes a special filter cartridge which replaces the centrifugation step following alkaline lysis. Plasmid DNA purified by this system is suitable for automated fluorescent DNA sequencing, restriction endonuclease digestion, transfection of mammalian cells, and other manipulations. Up to 1000 µg high copy number plasmid DNA or 50-500 µg low copy number plasmid DNA can be purified from 200mL overnight culture.

Details

Specifications

Features	Specifications
Main Functions	Isolation up to 1mg plasmid DNA from 200ml bacterial culture
Applications	Enzyme digestion, sequencing, PCR and labeling,  etc.
Purification method	Maxi spin column
Purification technology	Silica technology
Process method	Manual (centrifugation or vacuum)
Sample type	Conventional plasmid, plasmid less than 30KB
Sample amount	100-200ml
Yield	0.4-1mg
Elution volume	≥500μl
Time per run	≤60 minutes
Liquid carrying volume per column	20ml
Binding yield of column	1mg

Principle

The HiPure Plasmid procedure is based on alkaline lysis of bacterial cells followed by adsorption of DNA onto silica in the presence of high salt. The unique silica membrane used in the kit completely replaces glass or silica slurries for plasmid DNA minipreps. The procedure consists of 3 basic steps: Preparation and clearing of a bacterial lysate by alkaline method，then transfer the supernatant to column to bind DNA. After washing proteins and other impurities, nucleic acid was finally eluted with low-salt buffer (10mm Tris, pH9.0, 0.5mm EDTA).

Advantages

• High purity – purified plasmid can be directly used in sequencing, enzyme digestion and PCR, etc.
• Fast – it takes only 15-60 minutes to complete the isolation
• Economy – high cost performance

Kit Contents

Contents	P101402	P101403
Purification Times	10 Preps	50 Preps
RNase A	20 mg	40 mg
Buffer P1	140 ml	2 x 350 ml
Buffer P2	140 ml	2 x 350 ml
Buffer LEN3	70 ml	350 ml
Buffer GBT	120 ml	550 ml
Buffer PW1	60 ml	300 ml
Buffer PW2*	50 ml	4 x 100 ml
Elution Buffer	20 ml	120 ml
HiPure DNA Maxi Columns III	10	50
Lysate Clear Maxi Syringe	10	50
50 ml Collection Tubes	20	100

Storage and Stability

The kit components can be stored dry at room temperature (15-25°C) and are stable for at least 18 months under these conditions. If any precipitates form in the buffers, warm at 37℃ to dissolve. After addition of RNase A，Buffer P1 is stable for 6 months when stored at 2-8°C.

Purchase Guide

Name	CAT NO	Features	Sampleamount	Elutionvolume	Yield
HiPure Plasmid Mini Kit	P1001	Classic, Regular application	1-5ml LB	30-50μl	5–35µg/5ml
HiPure Plasmid Mini Kit II	P1002	Classic, Regular application	5-15ml LB	75-100μl	20-80µg/15ml
HiPure Plasmid Plus 96 Kit	P1006	Classic, Regular application	1-1.5ml LB	70-150μl	1-15μg/1ml
HiPure Fastfilter Plasmid Midi Kit	P1013	Fast	30-50ml LB	0.3-0.8ml	50–250µg/50ml
HiPure Fastfilter Plasmid Maxi Kit	P1014	Fast	100-200ml LB	0.5-1.5ml	0.4–1mg/200ml
Low endotoxin/Endotoxin-free Plasmid
HiPure Plasmid EF Maxi Kit	P1156	Classic method, General for all kinds of vectors	100-200ml LB	≥0.7ml	200–1500µg
HiPure Plasmid EF Mini Kit	P1154	Recommend for low copy vector, Thoroughly remove RNA	5-15ml LB	≥60μl	10–80µg
HiPure Plasmid EF 96 Kit	P1157	Recommend for low copy vector, Thoroughly remove RNA	1-5ml LBx96	≥75μl	30µg
HiPure Plasmid EF Midi Kit	P1231	Recommend for High copy vector, Low elution volume, High concentration	25-50ml LB	≥100μl	10-500μg
HiPure Plasmid EF Mega Kit	P1116	Recommend for High copy vector(>3μg/ml)	500ml LB	≥2ml	1-10mg

For any technical problems or customized products, please contact us.

F&Q about Endotoxin-free Plasmid Extraction Kit — P1156 ←click here

The HiPure FastFilter Plasmid DNA Maxi Kits combine the power of HiPure technology with the time-tested consistency of alkaline-SDS lysis of bacterial cells to deliver high-quality DNA. HiPure DNA columns facilitate the binding, washing and elution steps thus enabling multiple samples to be simultaneously processed. This system also includes a special filter cartridge which replaces the centrifugation step following alkaline lysis. Plasmid DNA purified by this system is suitable for automated fluorescent DNA sequencing, restriction endonuclease digestion, transfection of mammalian cells, and other manipulations. Up to 1000 µg high copy number plasmid DNA or 50-500 µg low copy number plasmid DNA can be purified from 200mL overnight culture.