PCW are the world's most abundant type of biomaterials and have applications ranging from dietary fibre and structuring the components in foods, raw materials for bio refining and as a source of Polymers for things such as gum and stabilisers. It also has an important role to play from a drug delivery perspective in that it can be the precursor to the formation of novel forms of biocapsules to used for a plethora of issues ranging from  delivering insulin to type 1 diabetes patients  to delivering cytotoxic drugs to patients who have cancer. These biocapsules would be superior to more traditional forms of drug delivery methods in that they would have far less contamination level and exhibit very low degree of stomach degradation due to the "recalcitrant nature"\cite{Atalla} of PCW while at the same time being vulnerable to degradation in the small intestitine which is precisely the position at which the biocapsule should be degraded for maximum absorbtion.  Studying the structural and mechanical properties of PCW  is key to being able to utilise PCW for any of these functions.  PCW are composed of Cellulose microfibrils which consists of unbranched, unsubstituted (1,4)-B-D-glucan chains that are able to form microfibrills. These exist in several different levels of crystallinity and length depending on site and function of cell. Furthermore there is difference of crystallinity in the individual cell where Cellulose is broken into layers of crystalline, paraccystaline and amorphous Cellulose. PCW also contains Pectins which are wall polysaccharides that are solubilized by aqueous buffers and dilute acidic solutions and calcium chelators \cite{Cosgrove_2015}. Pectins are very important for PCW as they form hydrated gels that push microfibrils apart, easing their sideways slippage during cell growth, while also locking them in place when growth ceases \cite{Lord_2002}.  Hemicelluloses are heteropolymers that are present with Cellulose in almost all plant cells, these are a wide variety of molecules which have a random amorphous structure with little strength and they could be solubilised by a strong alkali. These would include Xylan, Glucuronoxylan, Arabinoxylan, Glucomannan and Xyloglucan. Different levels of these polymers are found in different plant and in different locations around the plant \cite{Carpita_1993}.Further complexity is added by the fact that plant cells normally have two cell walls. A primary cell wall formed during cell expansion and a secondary cell wall that is deposited once cell expansion has ceased. Cellulose and Lignin levels are typically higher in secondary PCW than in primary PCW. Secondary cell walls provide additional protection to cells and rigidity and strength to the larger plant. These walls are constructed of layered sheaths of Cellulose microfibrils, wherein the fibres are in parallel within each layer. The inclusion of Lignin makes the secondary cell wall less flexible and less permeable to water than the primary cell wall \cite{Evert_2013} .In addition to making the walls more resistant to degradation, the hydrophobic nature of Lignin within these tissues is essential for containing water within the vascular tissues that carry it throughout the plant.  All these factors contribute to making PCW highly complex systems that are very hard to analyse the individual parts without damaging the structure and thus not understanding the structure properly. Thus, PCW mimics were made in the form of Bacterial Cellulose Hydrogels and were characterised by SSNMR  \cite{Suzuki_2001} .  These hydrogels are highly hydrated systems in which cellulose fibrillar networks interact with interstitial water at different structural levels. Several bacterial species such as Komagataeibacter xylinus (formerly known as Gluconacetobacter xylinus)\cite{Fang_Lin_2012}, are able to synthesise cellulose hydrogels in the form of pellicles when inoculated into a culture medium rich in carbohydrates or polyols. The synthesised cellulose hydrogels present a high degree of purity and hydration (ca. 99 wt% H2O) and possess a complex structure in which cellulose is hierarchically assembled to form different structural features \cite{Mart_nez_Sanz_2016}\cite{Mart_nez_Sanz_2016a}. The incorporation of PCW components into the bacterial culture Makes it possible to study the effects of individual hemcelluloses on the strucutre of cellulose, this is especially useful since it has been shown that the way hemecelluloses get incorrporated in the gel is in similar form to the way they get incorporated in the PCW. The incorporation of several PCW polysaccharides such as XG, mannans, AX, MLG and pectins using this approach is well reported in the literature [2,12,13,15e18,21e27]. From some of these studies it has been inferred that only XG and mannans are able to interfere with the cellulose crystallisation process, reducing the crystallinity index and promoting the formation of the cellulose Ib allomorph [14,15,17,18,23,26]. This indicates that a certain fraction of XG (or mannan) is able to interact directly with the individual cellulose microfibrils. In addition, a different fraction of XG, which interacts with the surface of cellulose ribbons, has been identified [14,15,17]. This fraction is thought to correspond to the thin XG cross-bridges detected in the microscopy images from composite hydrogels [14,15,17,26].  The aim of this work is to use SSNMR to obtain data about the rigdity,Crystalinity,Solavation and relaxation times of Cellulose Hydrogels and to identify the differences that happen when either Xyloglucan or Arabinoxylan is added to it and to use a model of I-S or I-I*-S to Interpret data obtained and to also to point out the limitation that CP might have to probing the structure of Bacterial cellulose and to present methods to tackle that problem.