#xylose

[whats-in-a-sentence]

Figure 22.1 shows the names and Fischer projections for all D-aldotrioses, tetroses, pentoses and hexoses.

"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.

[somberine]

Elsen who drinks all my soda and calls me a bitch

[xylosemagazine]

Arnold Schwarzenegger's life and career are a testament to the power of ambition, hard work, and resilience. Born on July 30, 1947, in Thal, Austria,

[tmmediaindia]

Understand the Spiderman of the Microverse: XLD Agar

Learning XLD’s X, Y, and Z can be challenging, but not with us. In the previous article, we discussed the various needs and applications of XLD (click on the link if you haven’t read it). In this, we’ll talk more about its composition, principle, observations, and modifications.

What is the composition of XLD Agar?

It was developed by Welton Taylor in 1965. XLD stands for Xylose Lysine Deoxycholate Agar and is a bright pink or red-colored solid opalescent gel medium. Knowing its key contents will help you better understand its principles and differentiating abilities.

Ingredients g/l

Yeast Extract 3 g

L-lysine 5 g

Xylose 3.75 g

Lactose 7.5 g

Sucrose 7.5 g

Sodium Deoxycholate 1 g

Sodium Chloride 5 g

Sodium Thiosulfate 6.8 g

Ferric Ammonium Citrate 0.8 g

Phenol red 0.08 g

Agar 12.5 g

Distilled water 1 Litre

Yeast extract provides the medium with nutrients, vitamins, peptides, and other essential growth factors. Xylose, lactose, and sucrose are rich sources of fermentable carbohydrates. For the detection of fermentation of these carbs in the medium, a pH indicator, phenol red, is added. The addition of xylose to the medium accounts for the differentiation of various fermenting enteric bacteria from species of Shigella that do not ferment it. Most enteric pathogens, including Salmonella,can ferment xylose, which results in the formation of acidic byproducts and a change in the color of the medium from pink to yellow, whereas Shigella colonies remain red. In some cases, Salmonella imitates Shigella colonies and gives red colonies, which are then differentiated by the production of Hydrogen sulfide gas by the metabolism of thiosulfate and give black centers. Enterobacteria such as E. coli can ferment lactose in the medium.

XLD Agar’s composition can be adjusted according to one’s needs and choices and is hence available in many different variations, but the basic principle remains the same.

Observation and Inferences on XLD Agar:

Observation Inferences

Red colonies, some with black centers Salmonella spp.

Red colonies Shigella spp.

Yellow to orange colonies Coliforms

Pink, flat, and rough colonies Pseudomonas aeruginosa

While learning about XLD Agar, a question that must have run through your thoughts would’ve been, “Where is XLD Agar available?” Let’s look into it.

Where is XLD Agar available?

XLD Agar is available on the market as Dehydrated Culture Media in a number of variations according to one’s requirements, including plant-based and animal-based options.

These Dehydrated Culture Media can be dissolved in distilled water according to the concentration mentioned on the package, autoclaved, poured, and used.

TM Media, the microbiology division of Titan Biotech Ltd., offers a wide range of XLD Agar as Dehydrated Culture Media in a number of variations suitable for all your needs, operations, and specific requirements.

The product range includes the following:

XLD AGAR MODIFIED (as per ISO) TM 1621: XLD Agar, modified, is a selective and differential medium for the isolation of gram-negative enteric pathogens from clinical specimens or food products. It is a modification of the original formulation of Taylor that allows selective isolation of Salmonella typhi, E. coli, Salmonella enteritidis, Salmonella typhimurium, and Shigella flexneri. It is recommended by the ISO committee, and the composition and performance criteria of this medium are as per the specifications laid down in ISO 6579-1:2017.

XLD AGAR (VEG.) TMV 492: Xylose Lysine Deoxycholate Agar (Veg) is prepared by replacing Sodium Deoxycholate with synthetic detergent No.III, which makes the medium free of BSE/TSE risks. Xylose Lysine Deoxycholate Agar (Veg) is suitable for the isolation and identification of enteric pathogens from stool samples.

XLD AGAR (as per USP/EP/JP/BP) TMH 112: This medium is employed for pharmaceutical testing and non-sterile product testing for the detection of Salmonella after enrichment in Rappaport VassialidiasSalmonella Enrichment Broth in accordance with the harmonized method of USP/EP/BP/JP/IP.

XLD AGAR TM 1448: It is used for pharmaceutical testing and nonsterile product testing for the detection (or absence) of Salmonella after enrichment in Rappaport Vassialidias Salmonella Enrichment Broth in accordance with IP.

XLD AGAR TM 492: XLD Agar exhibits increased selectivity and sensitivity as compared to other plating media, e.g., SS Agar, EMB Agar, and Bismuth Sulphite Agar. The media formulation does not allow the overgrowth of other organisms over Salmonella and Shigella. Samples suspected of containing enteric pathogens, along with other mixed flora, are initially enriched in Modified Semisolid RV Medium Base.

Why choose TM Media’s XLD Agar?

TM Media’s superior-quality and diverse Microbiological Culture Media are certified by ISO, CE, GMP, FSSAI, and FSSC.

TM Media provides unrivaled convenience, dependability, and efficacy, as well as versatility and flexibility, by manufacturing a contamination-free medium with a longer shelf life and reproducible outcomes.

Conclusion:

XLD Agar is a selective and differential agar medium primarily used for the isolation and differentiation of different enteropathogenic organisms that are well-known to cause diseases like Food poisoning, Gastroenteritis, and other Digestive illnesses.

By choosing TM Media, consumers invest in precision, quality, and excellence. TM Media's product portfolio includes over 2000 Dehydrated Culture Media, along with Ready-to-Use Culture Media, Biological Media Bases, Media Supplements, Lab Chemicals, and many more.

[marketinsight12]

The global market for Xylose is valued at USD 1924.03 Million in 2022 and is projected to reach a revised size of USD 3136.74 Million by 2030, growing at a CAGR of 6.3% over the period 2023-2030.

XYLOSE Market- Latest Advancement And Industry Analysis (2023- 2030) | IMR

[evalevaeva]

okay um sieun delusions... i heard this is a common experience for students who are class toppers in high school. once they get into an iv league school or a rly fancy high class school they're no longer special and gifted and smart cause EVERYONE is like that

so sieun goes to one of those universities and its his first time being in a school where... ppl are taking it seriously lmaoo. and he starts to notice that there's one student who is always just 1 rank above him. no matter what rank sieun got whether it was 10 or 2 yn is always right above him so he starts to notice her AND BOY GETS A LIL CRUSHY CRUSH HE DOES 😓

literally just make it fluffy or ill kill u

gifted | yeon sieun

- in which yeon sieun gets into seoul national university.

(LETS GOO SOMETHINGTHAT ISNT SOB WORTHY @slytherinshua i did it)

Sieun had done it. He'd gotten past all the bullying and the hardships and decided to throw away his past in Byuksan Middle School and Eunjang High School. He'd gotten into Seoul National University with a special scholarship given to the top 1% of the entire student body, taking the examinations in each region.

Sieun was used to being the only student who focused on his work and got good grades. University came as a shock to him as he stood in front of the noticeboard, the glass the only thing standing between him and the piece of paper. He wasn't first. He wasn't second either. He was in tenth place for the freshmens diagnostics test. Sieun couldn't believe it, as he turned to walk away from the crowd of students trying to find their names on the lower ranks. The Yeon Sieun had gotten tenth place in a test. The last time that happened, it wasn't pleasant. The name above his wasn't an unknown one. He had heard your name back when he was in high school, at cram school. He had never crossed paths with you, so he had never seen the use in interacting with you.

The boy could feel the sweat sticking his hair to his forehead. The students in Seoul National University were no joke, and it didn't take a genius to realise that. Every student had notebooks, textbooks, and most importantly, coffee. Sieun had never liked coffee, but feeling the lack of sleep every day caused him to become a crippling caffein addict.

No matter what he did, it seemed like one name could not leave his side (on results slip, of course). If Sieun was in nineteenth place，she would be in eighteenth place. If he was third, she was second. If he was sixth, she'd be fifth. It seemed as if they were binded together through the world of academics, and that caught Sieun's attention.

"The concept of biochemistry isn't something hard, everyone. Now, let's go onto sample questions," The professor spoke as the sound of pages flipping echoed throughout the lecture hall. Sieun flipped open his practice book as he read the question, his eyes widening slightly as he read the question. It definitely wasn't something easy.

"Which of the following are included in the types of glycolipids? N-acetylgalactosamine, N-acetylglucosamine, Xylose, or Cerebrosides?" The professor asked as he switched the slideshow to a practice question from the practice book.

The lecture hall was practically silent as students opened their guide books, worried as they realised that their confusion could lead to their downfall in their first year of university.

One hand was raised as Sieun turned to look at the girl who had her hand raised on the other side of the auditorium. She sat up straight as her hand was in the air confidently. She had a small smile on her face as she waited for the professor to call on her.

"Ah, one of our top students! y/n, what do you think the answer is?" The professor called out to the girl as she lowered her hand and spoke.

"Cerebrosides, they are a group of glycosphingolipids, which are the subgroup of glycolipids." The girl answered as the professor clicked on the slideshow to reveal the answer to indeed be Cerebrosides.

Sieun scribbled your name on the top right corner of the page as he rested his cheek on his palm, looking at the writing as he sighed to himself.

That was the first time you caught his eye. It wasn't something he could suppress for long. Sieun caught himself sneaking as many glances at you as he could without getting caught. He'd pretend to cough, just so he could turn in your direction to look at you or take a different route just to see you leaving the hall to the library.

You were always at the library. Similarly to the other students, you would mug till the late hours of the night.

You had your head on the table as you heard a light thud next to you, making you turn to the right to see a cup of coffee on the desk. You sat up straight to see Sieun sitting at the seat next to you, his lips in a thin line but his eyes betrayed him as he watched you, curious to see your reaction.

"Is this... for me?" You asked the doe-eyed boy as he nodded, turning to his books but his attention still on you.

"You seem tired today. You didn't get your usual coffee so I got it for you," Sieun said as you felt a pink hue engulf your cheeks as you looked away from the boy, coughing softly as you whispered with a smile, "Thank you".

That was the first time he felt his heart jump. Screw that, maybe free fall off a cliff? That feeling had him sitting at his desk at home, hand on his chest as he smiled to himself, giggling like a high school lover.

Sieun used every brain cell he had available from that day onwards to have a reason to talk to you. He'd drop his book, and you'd appear from around the corner, crouching down to help him pick it up. He'd buy you coffee every few weeks to the point that it becomes a routine.

"Yeon Sieun, second place." Sieun had grown accustomed to never being in first place. Instead, a smile grew on his face as he saw the name in first place, it was you. Sieun waited under the shade as he saw you and your group of friends at the noticeboard, reading the results as you turned away from the crowd and jumped up and down, excitement emitting from you.

"First! First again! It all paid off! Entering summer break on the best note ever!" You yelled as Sieun felt his cheeks hurting from how hard he was smiling at your antics.

"Sieun! Good to see you," you greeted the boy as you pulled out the chair to take a seat next to him in the library. Sieun gave you a small smile as you took out your books, placing them onto the desk as you began mindlessly mugging through the night.

Sieun raised his arms as he stretched, hearing a click from his shoulders as he turned to check on you, seeing your head on the table as you slept.

Sieun packed his stuff as he tapped you on the shoulder, making you jolt awake from your sleep.

"Sieun...?" you mumbled as sieun picked up the books from under your arms，packing them into your bag as he put your bag on his shoulder, surprising you.

"You seem very sleepy, I'll send you home. Don't go home so late next time, and don't stay up too late. You're getting eyebags and...you'll make me worried, " Sieun said as you got up and pushed the chair into the table, following him as you both walked to the bus stop.

There was an awkward silence until you decided to ask him a question, "Sieun, why did you start talking to me? I mean, it's not strange, seeing as we're taking the same course...".

Sieun stopped in his tracks as he calculated in his head the chances of you rejecting him at that moment. 33.3 in a 100.

"It's because I like you." Sieun admitted as if it was a passing comment. You turned to look at him, eyes wide as you tilted your head in confusion.

"You're serious? You actually like me?" You ask him, trying to find a hint of humour in his voice, but his voice was anything but humorous.

"I can't see a day in my life without you from now on. Will you give me the honour of being the one by your side till the end?" Sieun asked as you couldn't help but look into his eyes that seemed to hold every inch of the universe in them.

That was the day that Sieun was no longer alone in his life.

Every day seemed to be filled with you. He'd pick you up from your apartment and cook you breakfast, sit with you in the lecture hall, buy you your coffee, go out for dinner, and finally, send you home safely.

Sieun would help you prepare for practical examinations while you helped him prepare for theoretical examinations, the both of you were the most envied CC.

CC, Campus Couple. Sieun wouldn't have thought he'd have someone to accompany him, but somehow, you were gifted, right to him.

[o-craven-canto]

Ea: Our Second Chance (7)

7. Ean Biochemistry

(< 6a. The Mission) (> 6b. The Commander)

(full-sized image)

« In a sense, a squid is the attempt of mollusks to produce a fish. The same basic materials absolve to the same functions, but they do so through completely different structures and systems. So with this planet. Ea is Earth-like in broad strokes – yellow sun, solid surface, molten metal core, liquid water, free oxygen, carbon-based life – but the details, the details are all wrong. » – Eugene Wilson, Darwin Among the Stars

« Complaints that we have lost everything are understandable but wrong. We have all the CHNOPS available. We have sunlight. We have ourselves. That will be enough. Everything else is but details. » – Commander Arslana Samirowa, address to Pod 39

a. Paralaminarin. This glucose polymer appears to be Ea's most widespread storage carbohydrate. It resembles the laminarin found in Earth's brown algae, except it has only 2 beta(1→3) links for each beta(1→6) link, rather than 3. It is fully digestible by humans, and has many culinary uses, particularly in Enlilene molecular cuisine. Redstick syrup is up to 30% paralaminarin by dry weight. b. Pseudoxylan (b1). Another carbohydrate, but mostly structural. It is a polymer of five-carbon xylose (b2), united by beta(1→4) links. Unlike Earth's xylan, its lateral groups are ammonium and carboxyl rather than acetyl and uronic acids. The positively charged ammonium groups and the negatively charged carboxyl groups are believed to be responsible for the ionic bonds that keep pseudoxylan fibers coherent. c. Zincochrome. The key component of hematophyll, the metalloprotein responsible for photosynthesis in the Hematophytes. The double bonds in the tetrapyrrolic ring allow the absorption of energy from photons. This structure bears an astonishing resemblance to the heme group of hemoglobin (where iron takes the place of zinc), and – if a double bond is broken and the zinc replaced with magnesium – to the chlorin of chlorophyll. The function of the surrounding groups is not yet understood, though they are certainly necessary to anchor the ring into the protein. The copper-containing protein (cyanoglobin) responsible for oxygen absorption in Pentamera probably has a similar structure. d. Sulfolipid. Ea's equivalent of Earth's phospholipids, sulfolipids are the main components of cell membranes. The apolar portion is formed by two fatty alkyls of various lengths, united to the carbon skeleton by ether links. Ea's triglycerids (common fats and oils) have three fatty alkyl ethers, whereas sulfolipids replace one of them with a negatively charged sulfonate group, which forms the polar portion in contact with the cytoplasm or the external environment. Most xenolytics [i.e. treatments for animals and plants meant specifically to kill Ean pathogens] act by degrading sulfolipids, thereby selectively damaging the cells of Ean organisms. e. D-amino acids (e1: norvaline/2-aminopentanoic acid; e2: cycloleucine/1-aminocyclopentanecarboxylic acid; e3: homoalanin/alpha-aminobutyric acid). Both the D- and the L-isomers of all these amino acids are found in Terran biochemistry, though the former never form proteins, unlike on Ea. The commonality of amino acids between the two biospheres in not surprising: amino acids were known to exist abundantly in carbonaceous meteorites a full century before the Exodus, as they form spontaneously from methane and ammonia in aqueous solution. Similarly, sugars are produced by relatively simple condensation cycles from formaldehyde. f. Polysulfonamide (PSA). A structural polymer found in many unrelated Ean organisms. The rigidity of the sulfonyl group causes it to form solid crystals under many conditions. PSA is not as much a molecule as a large class of molecules: the lateral groups ( R) can be very different, but they are generally polar and negatively charged. Forms in which R groups are mostly sugars are found in the mucus of many aquatic organisms, whereas forms in which R are long-chain hydrocarbons form the waxy hydrophobic coating of certain cactus-like plants. g. Thiopolypropylene (TPP). The main component of the exoskeleton of Glissozoa, as well as the rind of most Dichogastria. Each strand is a chain of syndyotactic polypropylene, that is, one whose lateral methyls regularly protrude in alternate directions. This allows it to form, with sulfur, thioetheric cross-links to the surrounding chains, giving it immense mechanical resistence and a texture that recalls vulcanized rubber. TPP can be produced from transgenic bacterial cultures as a relatively biodegradable form of plastic, since many Ean prokaryotes are capable of digesting it, though rarely at a rate above a few millimeters per year. h. PNA (peptidonucleic acid) (h1). This molecule carries genetic information thanks to its sequence of nitrogenous bases (e.g. xanthin, h2). It exists in two forms, ketonic (C-C=O, "keto-PNA") and enolic (C=C-O, "enol-PNA"). The first is able to fold on itself and act much like Earth's RNA, performing a number of enzymatic functions, including self-replication. When enzymes convert the keton into enol, the new carbon-carbon double bond makes the backbone much more rigid, and the new negative charge on the oxygen causes them to repel other backbones, forming base-base hydrogen bonds. In the enolic form, PNA forms double helices, like DNA: it's more stable than the ketonic form, but unable to self-replicate. PNA has proven itself a useful substrate for nanocomputation. – Popular New World Science, n. 46 (184 AL, month 7), p. 33 (Complexity Level: Intermediate), Leeuwenhoek Academic Press

(Note: at first, the zincochrome was called “siderochrome”, and used iron instead of zinc. I changed this after the user Lowry of the Speculative Evolution Forum kindly pointed out that iron would absorb any excited electron in the pigment and thereby make photosynthesis impossible.)

[whats-in-a-sentence]

Hemicelluloses comprise a heterogeneous group of polysaccharides (Figure 14.11) that are usually tightly bound in the wall. (...) The dominant hemicellulose in primary cell walls of most land plants is xyloglucan, which consists of a (1,4)-β-D-glucan decorated with (1,6)-linked α-D-xylosyl residues (see Figure 14.11A). (...) A concise nomenclature has been developed to refer to the branching pattern of xyloglucan (see Figure 14.11B): for example, G is used for an unsubstituted glucose residue; X means glucose is substituted solely with xylose; L is used for a xylose-galactose side chain; and F denotes a xylose-galactose-fucose side chain. (...) Unlike in most land plants, the dominant hemicellulose in the primary cell wall of grasses (Poaceae) is arabinoxylan (also called glucuronoarabinoxylan or GAX; see Figure 14.11C). (...) Glucuronoxylan is similar to GAX (see Figure 14.11C) but without the arabinose side chains and the glucuronic acid is 4-O-methyl substituted. Glucomannan has a backbone consisting of β(1,4)-linked glucose and mannose residues, with infrequent galactose side chains (see Figure 14.11D).

"Plant Physiology and Development" int'l 6e - Taiz, L., Zeiger, E., Møller, I.M., Murphy, A.

[somberine]

some elsen

[xoslondon]

The Art of Extracting and Producing XOS: A Closer Look

Xylooligosaccharides, or XOS, are a type of oligosaccharide that are derived from the hydrolysis of xylan, a hemicellulose found in plant cell walls. XOS are composed of a varying number of xylose units linked together by β-1,4-glycosidic bonds. They are considered prebiotics, which means they can selectively stimulate the growth and/or activity of beneficial bacteria in the colon, leading to…

[tbrc34]

"From Plant to Plate: The Xylose Market Future (2024-2033)"

Xylose Market : Xylose, a naturally occurring sugar found in plants, is gaining momentum as a healthier alternative to traditional sweeteners. Known for its low glycemic index, xylose is an attractive option for those looking to reduce sugar intake without sacrificing sweetness. Its versatile applications in food and beverage products, particularly in low-calorie, diabetic-friendly, and keto-friendly products, have positioned xylose as a game-changer in the health-conscious consumer market.

Download PDF Sample Report@https://www.globalinsightservices.com/request-sample/GIS25290/?utm_source=SnehaPatil-Article

In addition to its role in food, xylose is emerging in the pharmaceutical and cosmetics industries due to its potential health benefits, including prebiotic effects that support gut health. As consumers become more mindful of their sugar consumption and seek cleaner labels, xylose is expected to see growing demand across multiple sectors, making it a star ingredient in the future of food innovation and wellness.

Relevant Link : https://linkewire.com/2024/10/04/natural-food-colors-market-projections-2024-2033-the-shift-toward-clean-label-ingredients/

#XyloseRevolution #LowGlycemicLiving #SweetInnovation #HealthierSweeteners #SugarAlternatives #CleanLabelLife #PrebioticPower #KetoFriendly #GutHealthBoost #FoodInnovationTrends

[xylosemagazine]

Madea, the larger-than-life character created by Tyler Perry, has been a cornerstone of modern entertainment, evolving from a stage phenomenon to a major film

[moleculardepot]

XLD Agar

XLD Agar Catalog number: B2017181 Lot number: Batch Dependent Expiration Date: Batch dependent Amount: 500 g Molecular Weight or Concentration: N/A Supplied as: Powder Applications: a molecular tool for various biochemical applications Storage: RT Keywords: Xylose Lysine Deoxycholate Agar Grade: Biotechnology grade. All products are highly pure. All solutions are made with Type I ultrapure water…

[whats-in-a-sentence]

Figure 14.10 illustrates a hypothetical scheme for linkage of HG, RG I, and RG II.

"Plant Physiology and Development" int'l 6e - Taiz, L., Zeiger, E., Møller, I.M., Murphy, A.

[somberine]

Really Normal Elsen