ADAM EUSTACE scored Gloucester's only try as Dean Ryan's side lost 19-7 against Llanelli.
Ludovic Mercier added the conversion but Ryan blamed a lack intensity for the defeat at Stradey Park.
"We have these pre-season games to highlight problems we don't want to encounter in the Premiership and in that respect it was very useful," Ryan said.
"But I was disappointed with the intensity levels we managed to bring to the game, particularly from our forward pack. We saw an improvement in the second half but by then it was too late.
"At times we also displayed a lack of creativity because we could have scored a number of times - but it was the lack of intensity that bothered me most.
"We need to make sure we create the right environment for the Premiership and that is what these games are for."
Ryan praised the contribution of prop Christian Califano as once again 'outstanding' and hopes next week to be able to welcome back Andy Hazell, Olly Morgan and Mike Tindall.
"I am sure when some of those guys are back in the squad our intensity levels will increase - that is what we are searching for and we want we need - it will be good to have these guys back involved," Ryan added.
Gloucester will await fitness reports to Haydn Thomas, Mefin Davies and James Simpson-Daniel following the defeat.
Skipper Billy Twelvetrees led Gloucester Rugby to European glory on Friday evening, scoring the crucial try on a memorable night for the Cherry and Whites. After the game, he paid tribute to his team's performance under pressure in the latter stages as they withstood a ferocious late Edinburgh fightback.
Speaking to GRTV, James Hook admitted that, after a superb opening, Gloucester really had to pass a test of character to hold off Edinburgh and lift the European Rugby Challenge Cup. He paid tribute to his team mates for all their hard work on what was a great day for the club.
Speaking to the assembled media this week, Gloucester Rugby club captain Billy Twelvetrees explains that the squad are ready for the final and that it will be an honour to lead the Cherry and Whites out in the Challenge Cup final.
Gloucester Rugby scrum half Greig Laidlaw will line up against former team mates Edinburgh Rugby on Friday evening, but the focus is firmly on his own roles as the Cherry and Whites gear up for the EPCR Challenge Cup final at The Stoop.
Speaking to the media ahead of Friday evening's European Rugby Challenge Cup Final against Edinburgh, Director of Rugby David Humphreys stressed that his improving Gloucester team will need to perform at their best to prevail against a tough Edinburgh side.
Dan Robson, a second half try scorer in the 42-40 win over Newcastle on Saturday, admitted that Gloucester had started slowly but that the second half comeback showed real character and maintains momentum going into Friday's European final.
Gareth Evans was a first half replacement for the Cherry and Whites on Saturday afternoon, but the back rower's impressive carrying kept the hosts on the front foot when they needed it most to snatch a dramatic comeback win.
After his last ditch try clinched the 42-40 Aviva Premiership victory over Newcastle at Kingsholm on Saturday, Billy Burns told GRTV that all the Gloucester team deserve credit for hanging in there against a Falcons team who really made life tough for the Cherry and Whites.
Figures released by EPCR following Gloucester winning the European Rugby Challenge Cup on Friday evening show that, unsurprisingly, a number of those wearing Cherry and White showed up well in the various statistical categories.
Speaking after the European Rugby Challenge Cup triumph on Friday evening, Director of Rugby David Humphreys was thrilled with how the Cherry and Whites managed the game and secured the first major European silverware for nine years.